Ooma Inc

NYSE:OOMA

Earnings Call Analysis

Revenue Growth and Fiscal 2025 Outlook

In Q4, total revenue reached $61.7 million, with a year-over-year increase of 9%. Business subscription and services revenue surged by 19%, driven by user growth and strategic acquisitions, although residential revenue dipped slightly by 1.7%. The company ended the quarter with strong customer metrics and an annual exit recurring revenue of $227 million, reflecting a 10% year-over-year increase. The net dollar subscription retention rate stood at 99%. Looking ahead, fiscal 2025 forecasts a total revenue of $250 to $253 million with an expected 11-13% growth in business subscription and a slight decline in residential subscription revenue. Non-GAAP net income is projected to be $14 to $15 million with a non-GAAP diluted EPS of $0.51 to $0.55.

Financial Performance Highlights of Q4 and FY '24

Ooma showcased a robust financial performance during the fourth quarter, characterizing its overall upward trajectory over the fiscal year. The company ended Q4 with $61.7 million in revenue and $3.5 million of non-GAAP net income. The year-over-year growth was marked by tangible increases across the board, with revenue up by 10%, non-GAAP net income by 13%, adjusted EBITDA by 14%, and a standout increase in cash flow from operations by 40%.

Strategic Business Achievements

The company's strategic ventures have paid off, particularly with the expansion of Ooma Office in the SMB sector. Notably, Ooma Office integration with Clio legal practice management software has translated into the company's largest customer win in the quarter. Ooma Enterprise also recorded strong performance with significant client acquisitions, including a major customer with several thousand users across hundreds of locations. Ooma AirDial continued to gain ground with over 500 new customer deals and was awarded the 2024 TMC Internet Telephony Product of the Year.

Forward-Looking Confidence

Looking ahead, Ooma is well-positioned in the market, crowned as a leader in targeted segments and identified significant untapped market opportunities, particularly as many smaller businesses are yet to transition to cloud communications. The company's strategic investments in innovative product solutions like Ooma AirDial and Ooma 2600hz are expected to broaden its market reach and capitalize on the ongoing shutdown of the traditional copper phone network, seen as a significant trend bolstering Ooma's offerings.

Industry Trends and Product Developments

Ooma stands to benefit from various industry trends, including the rise of 5G Internet, creating reconsideration amongst businesses about their communications providers. Additionally, the advent of AI in contact center applications is seen as a potential driver for future adoption of Ooma services, despite current limited use by smaller-sized businesses. The company is keen to introduce AI applications into their solutions, foreseeing enhanced value and demand for their offerings.

Financial Outlook for Q1 and FY '25

For Q1 fiscal '25, Ooma anticipates revenues to approach the earlier high mark, setting a range between $61.7 million to $62.2 million. The full year fiscal 2025 is forecasted to yield revenues between $250 million to $253 million, assuming a business subscription and services revenue growth rate of 11% to 13%, mildly offset by an expected decline of 1% to 2% in residential subscription revenue. Anticipated challenges include a larger-than-normal churn from a key partner, IWG, estimated to reduce seat count by 20% in Q1 but potentially recoverable as international expansion continues. Non-GAAP net income guidance for fiscal 2025 projects a range of $14 million to $15 million, with adjusted EBITDA anticipated to fall between $20.5 million and $21.5 million, despite slight declines in non-GAAP net income due to increased interest expenses, lower interest income, and a small uptick in tax expense.

Earnings Call Transcript 2024-Q4

[Operator]

Hello and thank you for standing by. Welcome to Ooma Fourth Quarter and Fiscal Year 2024 Financial Results. [Operator Instructions]I would now like to hand the conference over to Matt Robison. You may begin.

[Matthew Robison, executive]

Thank you, [ Tiana ]. Good day, everyone, and welcome to the fiscal fourth quarter and full year 2024 earnings call of Ooma, Inc. My name is Matt Robison, Ooma's Director of IR and Corporate Development. I apologize in case I cough during my comments.On the call with me today are Ooma's CEO, Eric Stang; and CFO, Shig Hamamatsu. After the market closed today, Ooma issued its fiscal fourth quarter and full year 2024 earnings press release. This release is also available on the company's website, ooma.com. This call is being webcast live and is accessible from a link on the Events and Presentations page of the Investor Relations section of our website. This link will be active for replay of this call for 1 year.During today's presentation, our executives will make forward-looking statements within the meaning of the federal securities laws. Forward-looking statements generally relate to future events or future financial or operating performance. Our expectations and beliefs regarding these matters may not materialize, and actual results are subject to risks and uncertainties that could cause actual results to differ materially from those projected. These risks include those set forth in the press release we issued earlier today and those risks more fully described in our filings with the Securities and Exchange Commission. The forward-looking statements in this presentation are based on information available to us as of the date hereof, and we disclaim any obligation to update any forward-looking statements, except as required by law.Please note that other than revenue or as otherwise stated, the financial measures to be disclosed on this call will be on a non-GAAP basis. The non-GAAP financial measures are not intended to be considered in isolation or as a substitute for results prepared in accordance with GAAP. A discussion of why we present non-GAAP financial measures and a reconciliation of the non-GAAP financial measures discussed in this call to the most directly comparable GAAP financial measures is included in our earnings press release, which is available on our website.On this call, we will give guidance for the first quarter and full year fiscal 2025 on a non-GAAP basis. Also, in addition to our press release and 8-K filing, the Overview page and Events and Presentations page in the Investors section of our website, as well as the Quarterly Results page of the Financial Information section of our website include links to information about costs and expenses not included in our non-GAAP values and key metrics of our core subscription businesses. These are titled Supplemental Financial Disclosure 1 and Supplemental Financial Disclosure 2. Additionally, our investor presentation slides include GAAP to non-GAAP reconciliation that also provides resolution of GAAP expenses that are excluded from Non-GAAP metrics.Now, I will hand the call over to Ooma's CEO, Eric Stang.

[Eric Stang, executive]

Thank you, Matt. Hi, everyone. Welcome to Ooma's fourth quarter fiscal year 2024 earnings call. Thank you for joining us. I look forward to reviewing our Q4 and fiscal year 2024 results with you today. I'm also excited to talk with you about our strategy and plans for our upcoming 2025 fiscal year.Overall, I believe Ooma is fortunate to enter FY '25 in a strong position with leading product solutions and significant potential for business expansion. In Q4, Ooma performed well financially, delivering $61.7 million in revenue and $3.5 million of non-GAAP net income. Adjusted EBITDA jumped to $5.2 million, and cash flow from operations increased significantly to $5.5 million.For all of FY '24, we achieved $236.7 million in revenue, $15.4 million of non-GAAP net income and $19.8 million of adjusted EBITDA. Year-over-year, we grew revenue by 10%, non-GAAP net income by 13%, adjusted EBITDA by 14% and cash flow from operations by 40%. We achieved this growth while also investing significantly in new market opportunities and international expansion. And we believe we made important progress in FY '24 on our strategy to expand our business and drive profitable growth.On the business side, in Q4, we continued to invest in feature expansion, customer growth and the development of new resale partnerships. On all fronts, Ooma Office, Ooma Enterprise, Ooma AirDial and 2600hz, we made significant achievements in Q4. For Ooma Office, our solution for small to medium-sized businesses, we expanded our sales efforts on the legal vertical, taking advantage of our announced integration with Clio legal practice management software. These efforts are going well with our largest customer win in the quarter being a 90-user deal. We also increased the proportion of new Ooma Office customers who signed up for a premium tariff service to 59%, our highest level to date. I'm also pleased to report that we signed an agreement with a new partner who will resell Ooma Office, and we have started the work to enable them. We expect the contribution from this partner this year to be modest, but we consider it a great first step toward engaging other potential resale partners for Ooma Office.Regarding Ooma Enterprise, our solution for larger-sized businesses, we also made significant achievements in Q4. One was a large new customer we signed, where we will serve several thousand users spread across 400 locations. We will be providing a combination of our full UCaaS solution for many of their users and our Teams integrated calling solution for the rest. In our targeted hospitality vertical, we continued our momentum, again winning over 50 new hotels in the quarter. We also brought on a new technology partner who helped us sell into this space.Ooma AirDial, our innovative solution to replace aging and expensive POTS lines, continued to make progress in Q4 as we invest in this new opportunity. In Q4, we closed over 500 new customer deals with some being notable large company wins. We expect many of these deals will start by rolling out only to a small subset of the available locations and then build through the year. In general, we find customers want to move forward on their immediate needs for copper line replacement, usually driven by lines being shut off or substantially increased line pricing before they plan a full rollout of Ooma AirDial across their business locations.In Q4, we also continued to refine our AirDial product solution, including enhancing the AirDial remote device management system and enabling AirDial to serve new applications we came across. We added 5 new AirDial resale partners in Q4, which expands the number of partners reselling AirDial to over a dozen now. And finally, I'm very happy to report that AirDial won the 2024 TMC Internet Telephony Product of the Year Award for its multipath technology, which delivers unique and patented uninterrupted backup for POTS replacement.Turning now to 2600hz, our wholesale UCaaS, CCaaS and CPaaS platform solution, I believe we have made tremendous progress since acquiring them just 4 months ago. We believe we are on track to achieve the synergies we planned and make 2600hz adjusted EBITDA accretive in Q1 of this year. What is particularly exciting for us, though, is the level of new customer interest we are seeing. It is happening faster than I expected. We have already won 1 new customer who will convert their customer base to the 2600hz Kazoo platform, and we are currently far along on other new customer opportunities.2600hz is being looked at to replace aging and less agile UCaaS platforms. It is also being looked at as an alternative to standard CPaaS solutions, which lack prebuilt applications and cannot be directly controlled and hosted by end customers. Of course, the wholesale nature of this business means it will take new customers an extended amount of time to implement the solution and produce revenue. Nonetheless, the unexpectedly high level of interest we are seeing gives us confidence in our acquisition thesis and strategy for 2600hz.We're proud of our accomplishments in Q4, but we also realize we have much more to do to capitalize on the investments we are making in the business. As we look forward, we believe we are well placed to do so for 3 main reasons. One reason is, we believe we are a leader in the key segments we serve with differentiated product solutions and a very low-cost position to provide services. A second reason is, we see significant untapped market opportunity in the key segments we target, in particular, since so many smaller-sized businesses have yet to move to a more advanced cloud communications solution. The third reason is the new directions we have invested in over the last couple of years. Ooma AirDial for POTS replacement and Ooma 2600hz for wholesale UCaaS, CCaaS and CPaaS applications give us greater breadth of opportunity and open up paths to partner with others and extend our market reach.As we look forward, we see several meaningful trends that support our strategic direction and give us confidence that the investments we are making will pay off. One of these is simply the fact that in North America alone, we estimate there are 6.4 million small businesses with 1 to 20 employees and that a significant amount of these businesses have yet to transition to a modern cloud-based communications solution. We believe the market opportunity for Ooma Office is quite sizable. A second trend is the shutting down of the traditional copper phone network, which is already underway, both here in the U.S.A. and in parts of Europe, and seems to be accelerating as of late. We have what we believe is the leading solution with AirDial to serve equipment that doesn't easily move off of a copper line. More generally, our small business and residential solutions both benefit as well, as customers are forced to look for new solutions when they lose their copper connection.A third trend, which we believe is favorable to Ooma, is the rise of 5G Internet. Many smaller-sized businesses rely today on a double-play solution, in other words, Internet and phone from a cable provider. The availability of 5G wireless Internet can cause these businesses to reconsider not only their Internet solution, but also their communications provider. It also presents a future opportunity for Ooma to offer its own 5G double-play solution. As you know, currently, we offer our 4G-based Ooma Connect solution as backup Internet for businesses or sometimes as primary Internet for very small-sized businesses.A fourth market trend is the advent of AI. In contact center applications and generally across all communications, significant data is created in the form of calls, texts and chats. And AI has a strong role to play to help businesses optimize their performance. To date, our activities in this area have been limited, in part due to the newness of AI and the fact that AI has not yet seen much adoption by smaller-sized businesses. However, as we look forward, we anticipate launching AI applications in our solutions and believe that these applications will make our solutions more valuable and in greater demand by our customers.And finally, the last industry trend that I want to highlight is the desire by customers to do more with their communications solutions by making the applications they use more bespoke to their individual needs. For smaller customers, this can entail integrations with other solutions used in their businesses. For larger customers, this can mean building custom applications using either CPaaS or a flexible API-based wholesale platform. Either way, Ooma is positioned with innovative and leading solutions to take advantage of these customer opportunities.Building on these industry trends, our plans for FY '25 include continued investment in key opportunities, balanced with improvement in bottom line results. Some of the things we plan to accomplish in FY '25 are: one, to introduce new integrations with other platforms; two, to extend our current call center capability into a more complete and omni-channel contact center solution; three, to incorporate 5G performance into our Ooma Connect wireless Internet solution; four, to expand further internationally, including with our largest customer, IWG; five, to enhance our 2600hz wholesale platform by integrating other Ooma technology and applications; six, to increase our sales and marketing activities across our business, from direct sales to online and inside sales, to channel and agent sales, to partner sales; and finally, seven, to grow our community of resale partners who value our solutions and help us reach more of the vast market opportunity in front of us.I'm excited by the strategy we have put in place and by the progress I see us having made each quarter as we expand and grow. I believe FY '25 looks to be an exciting year ahead for Ooma.I'll now turn the call over to Shig, our CFO, to discuss our results and outlook in more detail and then return with some closing remarks.

[Shigeyuki Hamamatsu, executive]

Thank you, Eric, and good afternoon, everyone. I'm going to review our fourth quarter financial results and then provide our outlook for the first quarter and full year fiscal 2025.We delivered another solid quarter with a total revenue of $61.7 million, near the high end of our guidance range. On a year-over-year basis, total revenue grew 9% in the fourth quarter, driven by the growth of Ooma business, as well as the addition of 2600hz. In the fourth quarter, business subscription and services revenue accounted for 60% of total subscription and services revenue as compared to 55% in the prior year quarter. Q4 product and other revenue came in at $3.7 million as compared to $3.9 million in the prior year quarter.On a full year basis, total revenue was $236.7 million as compared to $216.2 million in the prior year, representing 10% growth year-over-year, including 22% growth in business subscription and services revenue.On the profitability front, the fourth quarter non-GAAP net income was $3.5 million, which exceeded our guidance range. On a full year basis, non-GAAP net income was $15.4 million compared to $13.6 million in the prior year.Now, some details on our Q4 revenue. Business subscription and services revenue grew 19% year-over-year in Q4, driven by Ooma business user growth and the addition of 2600hz. Excluding the effect of inorganic revenue contribution, Ooma business subscription and services revenue grew 12% year-over-year. On residential side, subscription and services revenue was down 1.7% year-over-year. As a reminder, we had a onetime churn event during the first quarter of fiscal 2024 with a particular customer with an unusual application, which continued to impact our year-over-year comparison in Q4. For the fourth quarter, total subscription and services revenue was $58 million, or 94% of total revenue compared to 93% in the prior year quarter.Now, some details on our key customer metrics. As a reminder, except for annual exit recurring revenue, these metrics do not include the 2600hz wholesale business. We ended the fourth quarter with 1,243,000 core users, up from 1,241,000 core users at the end of the third quarter. At the end of the fourth quarter, we had 484,000 business users, or 39% of our total core users, an increase of 9,000 from Q3. Our blended average monthly subscription and services revenue per core user, or ARPU, increased 3% year-over-year to $14.72, driven by an increase in mix of business users, including higher ARPU Office Pro and Pro Plus users. During the fourth quarter, we continued to see a healthy Office Pro and Pro Plus take rate with 59% of new Office users opting for these higher-tier services, which was up from 52% in the prior year quarter. Overall, 29% of Ooma Office users have now subscribed to Pro or Pro Plus tier. Our annual exit recurring revenue grew to $227 million and was up 10% year-over-year. Our net dollar subscription retention rate for the quarter was 99% as compared to 99% in the third quarter.Now, some details on our gross margin. Our subscription and services gross margin for the fourth quarter was 72% as compared to 73% in the prior year. As a reminder, subscription and services gross margin for the fourth quarter this fiscal year included a full quarter impact of 2600hz gross margin, which is running lower relative to Ooma's subscription gross margin. Product and other gross margin for the fourth quarter was negative 72% as compared to negative 54% for the same period of last year. As mentioned in the prior calls, the decline in Q4 product gross margin this year versus last year was primarily due to sell-through impact of certain higher-cost components that we had procured in the last fiscal year due to pandemic-driven supply chain issues. We currently estimate product and other gross margin for the first half of fiscal 2025 will be comparable to that of the fourth quarter fiscal 2024 as we continue to work through this excess component costs and then normalizing in the negative 50% range starting in the second half of fiscal 2025. On an overall basis, total gross margin for Q4 was 63% as compared to 64% in the prior year quarter.And now, some details on operating expenses. Sales and marketing expenses for the fourth quarter were $17.3 million, or 28% of total revenue, up 2% year-over-year, primarily driven by increases in personnel costs and channel development activity for AirDial. Research and development expenses were $11.9 million, or 19% of total revenue, up 14% on a year-over-year basis, driven mainly by the addition of 2600hz team members. G&A expenses were $5.4 million or 9% of total revenue for the fourth quarter, compared to $4.9 million for the prior year quarter. The year-over-year increase in G&A expenses was primarily due to an increase in personnel costs. Overall, total operating expenses for the fourth quarter were $34.7 million, up $2.3 million or 7% from the same period of last year.Non-GAAP net income for the fourth quarter was $3.5 million, or a diluted earnings per share of $0.13 as compared to $0.16 of diluted earnings per share in the prior year quarter. In addition to stock-based compensation and intangible amortization expenses, non-GAAP net income for the fourth quarter excluded approximately $1.0 million of acquisition and other related costs incurred in connection with the 2600hz transaction.Adjusted EBITDA for the quarter was $5.2 million, a record for the company, or 8% of total revenue, as compared to $5.1 million for the prior year quarter.We ended the quarter with total cash and investments of $17.5 million. Cash generated from operations for the fourth quarter was strong and up $5.5 million. It was a new quarterly record for the company. For fiscal 2024, we generated a record $12.3 million of operating cash flow and $6.1 million of free cash flow, which represented 40% and 69% increase, respectively, over the prior year.Given our strong cash flow in the fourth quarter, we already began paying down the debt and reduced the outstanding balance by $2 million at the end of Q4. We paid down an additional $2 million shortly after the end of Q4. And as of today, we have reduced the outstanding debt balance to $14 million.On the headcount front, we ended the quarter with 1,221 employees and contractors.Now, I will provide guidance for the first quarter and full fiscal year 2025. Our guidance is on a non-GAAP basis and has been adjusted for expenses such as stock-based compensation and amortization of intangibles.We expect total revenue for the first quarter of fiscal '25 to be in the range of $61.7 million to $62.2 million, which includes $3.7 million to $3.9 million of product revenue. We expect first quarter net income to be in the range of $3 million to $3.3 million. Non-GAAP diluted EPS is expected to be between $0.11 and $0.12. We have assumed 26.6 million weighted average diluted shares outstanding for the first quarter.For full year fiscal 2025, we expect total revenue to be in the range of $250 million to $253 million. The full year fiscal 2025 revenue guidance assumes business subscription and services revenue growth rate of 11% to 13% over fiscal 2024, while residential subscription revenue to decline 1% to 2%. For fiscal 2025 revenue guidance -- fiscal 2025 revenue guidance also assumes the impact of larger-than-normal churn from IWG, where the seat count is expected to be reduced by about 20% in the first quarter. We believe this event is infrequent in nature and the substantial portion of it can be offset by additional seat deployment during fiscal 2025 as we continue international expansion with IWG. In terms of revenue mix for the year, we expect 93% to 94% of total revenue to come from subscription and services revenue and the remainder from products and other revenue.We expect non-GAAP net income for fiscal '25 to be in the range of $14 million to $15 million. Based on this guidance range, we estimate our adjusted EBITDA for fiscal 2025 to be $20.5 million to $21.5 million.Let me give you some additional color on our fiscal 2025 non-GAAP net income guidance. While we expect the non-GAAP operating margin and adjusted EBITDA to increase year-over-year, our non-GAAP net income guidance range represents a slight decline year-over-year due to the following factors. First, we expect interest expense to increase by $0.7 million to $0.8 million due to a full year impact of the new revolver debt. Second, we expect interest income will be lower year-over-year by approximately $1 million as we continue to focus on debt paydown in fiscal year 2025. Lastly, we currently estimate tax expense for fiscal 2025 will increase by approximately $0.2 million.We expect non-GAAP diluted EPS for fiscal '25 to be in the range of $0.51 to $0.55. We have assumed approximately 27.4 million weighted average diluted shares outstanding for fiscal 2025.In summary, we are pleased with our solid finish to our fiscal '24 with a record quarterly adjusted EBITDA, along with strong cash generation in the fourth quarter. We are excited about growth opportunities in front of us and remain focused on executing to our long-term strategy to achieve profitable growth.I will now pass it back to Eric for some closing remarks. Eric?

[Eric Stang, executive]

Thank you, Shig. As I mentioned at the outset, I believe we entered fiscal year 2025 in a strong position with leading product solutions and significant potential for business expansion. We are working to take advantage of several significant industry trends. And our strategy includes exciting investments in feature expansion, customer growth and the development of new resale partnerships. We believe our strategic focus on small to medium-sized businesses, larger businesses that are in select verticals, POTS replacement and wholesale UCaaS, CCaaS and CPaaS platform opportunities positions us well for future success.Thank you. We'll now take your questions. Operator?

[Operator]

[Operator Instructions] Our first question comes from the line of Arjun Bhatia with William Blair.

[Arjun Bhatia, analyst]

I thought the partnership with Clio was pretty interesting, especially as it relates to the legal vertical. Can you maybe just expand a little bit on how impactful that can be to the business? And when you think about other verticals or other potential partnerships, how are you viewing the opportunity with some of these vertical software players that exist as an entry point into other verticals or to expand some of those where you might already have a presence?

[Eric Stang, executive]

Yes, happy to. I don't think there's -- well, each time we do one of these, it gives us an opportunity to bring a more integrated solution, frankly, for the customers in that vertical. And from a sales and marketing perspective, it also allows us to position ourselves well as a good solution to those customers. And to some degree, depending on who the partner is, we can also get some momentum and some additional sales and marketing reach out of what the partner will do with us on their own to help promote or support what we're doing. So all around, it's an exciting way to just build a better solution for the customer. And we've definitely seen that in the legal vertical with what we've done with Clio. We've done things in a couple of other verticals already as well. And I think you'll just see -- we expect to roll out a cadence of these through the year as we look forward.

[Arjun Bhatia, analyst]

Okay. Got it. That's helpful. And then maybe, Eric, sticking with you on the CCaaS space, I know you called that out as a priority going into fiscal '25. But when you think about that market, there is quite a bit of competition there already. Maybe can you just give us a sense of how Ooma is differentiating in that market? What your offering has that's above some of the competitors to be able to take share there? And then help us understand the timing of when we might start to see maybe an inflection from the CCaaS capabilities.

[Eric Stang, executive]

Yes. Happy to talk about it. It's something that has us excited. We took a big step forward in our acquisition of 2600hz on this front. They have worked for a number of years on their CCaaS solution. And I think by middle of this year, that work will come to fruition, and we'll be able to really leverage, in a multimodal way, the capabilities they've put in place. It'll be a little bit longer before we apply that solution to, say, Ooma Office or Ooma Enterprise. But nonetheless, it really opens the door for us to take a big jump forward in a critical part of the market. It's not our intent strategically to build the most complete or extensive CCaaS solution. We see a lot of customers that need core functionality, where call center and contact center may be a part of what the business does, and they have anywhere from a handful agents to a greater number. And they want something that works well and fits into the rest of the solution and, frankly, isn't too expensive. And we think with what we'll do with Ooma Office and Ooma Enterprise, we'll approach the market more from that perspective. That -- you can think of that a little, in a way, as a solution that's going to fit a business [ 1 to ] 1,000 employees as opposed to a big mega contact center implementation. But what we're building on the 2600hz side and what they will have is quite flexible. And because of that flexibility and API-based design, it will do a lot of valuable things, and it will be possible for anyone who wants to use that platform to extend it into any bespoke applications or extension of it that they want to do. So in some ways, it's also a foundation for larger companies to get just what they want out of the solution. So I hope that answers your question. Timing is kind of middle of this year and then later this year for Ooma Office and Ooma Enterprise. And you can -- and I think I covered the way we're targeting the market with it.

[Operator]

Our next question comes from the line of Josh Nicholas with B. Riley.

[Josh Nichols, analyst]

Two things, I guess. One is, could you elaborate a little bit -- you talked about expecting some churn, I think, with IWG in the first quarter, and help quantify the impact that, that has. And then two, I'm just kind of curious, given all the backlog ramp that you kind of talked about on the AirDial front, like what you're kind of assuming for the growth for that piece of the business, given that it's still early stage.

[Eric Stang, executive]

Sure. Josh, so every -- for years in working with IWG, they've had some measure of churn, so to speak. I don't tend to think of it so much as churn because we serve all of their customers. Now, they obviously have customers who leave their centers and other ones that come in, and you can view it as churn when one leaves and then maybe as a new user when the next one comes in. But we've had some turnover and some reductions all through our working with them. And the numbers we've reported to all of you over the time have been net. They've been net of that, call it, say, quarterly reassignment almost. And those numbers tend to run at a certain level and maybe a few thousand a quarter. But what Shig talked about is a bigger adjustment. And basically, this is a catch-up. This is -- we've worked with IWG from both sides, our side and their side, and helped them get a finer analysis done across their full worldwide business of what lines they need and don't need. And so, we're doing essentially a more or less onetime catch-up adjustment here that's a little bit larger than the normal churn we see every quarter. And I think Shig talked about it being on the order of...

[Shigeyuki Hamamatsu, executive]

Yes. In terms of seat numbers, about 20% of what we have with the seat count. I think in terms of dollars, we're not going to specifically quantify it, Josh, but I think that we have considered it, obviously, in our annual revenue guidance range, the impact of it, and then also our Q1 guidance because it's churn -- yes, you heard it right, churn is happening in Q1. So we consider the Q1 revenue guidance. I think the other point I would be -- we thought about the impact on net dollar retention rate. We reported 99%. Really this time, we'll just bring it down to 98%, our estimate today, when that happens. So it's not a -- the 20% is a good number. As Eric said, it's a catch-up, but impact overall is not that significant. And I think that says a lot about diverse base of our customer.

[Eric Stang, executive]

Well -- and as well, we're adding new users with IWG every month. We have further rollout going on with them internationally through the first half of this year at least. And they have quite an ambitious plan, although I probably can't say exactly, but they have pretty ambitious plan for opening new centers around the world as well, and all of that is growth for us. So we're going to see how much we can offset this and generate additional growth, but we just wanted to call out because it's out of trend, this adjustment.Your other question was about AirDial growth and the assumptions we have in the outlook. I'll make a quick comment on that, and I don't know if Shig has more to add. We've chosen in our outlook to be conservative on what will happen with AirDial this year. We have not been very good at predicting it. And so, while we shared what we can share around the number of deals we closed last quarter and our continued belief in the business, we're not trying to forecast something much larger than where we are today until we see those results come through.

[Shigeyuki Hamamatsu, executive]

Yes. I echo what Eric said, Josh. So I think we learned a lot in the last 18 months and -- on AirDial, particularly the installation timing. As we said before that when customers are ready to install, we can be there right pretty quick and install. And we had some of those quick deals, installation deals in Q4 as well. We want to be conservative in our guidance, and that's what we assumed. And -- but at the same time, we're still excited about growing pipeline of AirDial.

[Eric Stang, executive]

Yes. Don't take this outlook as any diminution, if you will, diminution of the pipeline we see for AirDial and the deals we're working. That's as robust as ever.

[Josh Nichols, analyst]

Yes. So I guess I'd just classify this as a little bit more like a kind of baseline growth rate assumption, excluding any material traction or success in AirDial.

[Eric Stang, executive]

Yes. You heard our comments. Yes.

[Operator]

[Operator Instructions] Our next question comes from the line of Brian Kinstlinger with AGP.

[Brian Kinstlinger, analyst]

It's a question on the guidance. If you look at the first quarter's revenue guidance, at the midpoint, it's about 9%, I think, if you look at the full year, it's just a smudge over 6%. So it appears the year-over-year growth rate is decelerating. If we think with early installs of AirDial not going as quickly and rolling out, like you said, in the second half of the year, I would think that, coupled with the Enterprise customers, a large customer ramping, also coupled with the headwind in the first half of IWG coming out, the 20%, that the second half of the year might be faster than the first half of the year. Could you just kind of reconcile why it appears the growth rate is going to slow in the second half of the year?

[Shigeyuki Hamamatsu, executive]

Brian, I think the first quarter growth versus second half, here's how I think about it. You're right, the midpoint of the guidance implies a 9% year-over-year growth. But do remember that, that has the impact of inorganic piece of it because last year Q1, or Q1 FY '24 doesn't have 2600hz in it. And so, there's an inorganic piece of it. So if you take out inorganic piece of it and just look at the organic growth in Q1, I'm looking at about 5% organic growth. And so -- but if you go to back half of the year, then you start to have these -- both year having the 2600hz, so you naturally see the total revenue growth lower than Q1 unless you consider the organic -- inorganic piece of it. So that's the reason why you're seeing those number comparisons you mentioned. I do think that organically, we should see better growth in the second half, especially as we continue to ramp on the AirDial opportunities. Again, we're not going to be specific about those AirDial numbers, first half, second half, anything like that. But one main explanation is what I said, just kind of looking at the inorganic versus organic growth.

[Brian Kinstlinger, analyst]

Got it. Okay. And then, you mentioned 6 kind of areas, I think 6, of investment and plans for the year in your strategy. And if I look at the EBITDA growth, it's about similar to the revenue growth, plus or minus. When do you expect the investments to A, accelerate revenue growth? And if it does accelerate revenue growth in the time to come, do you expect to see leverage in the EBITDA margin? Or will you continue, do you think, in the near term, to reinvest that profit?

[Eric Stang, executive]

Yes. So we followed our -- an outlook this year that we've been following in the past, which is to invest in these key new areas of opportunity, while also slowly growing our EBITDA and bottom line. And we're pretty proud that we're managing to do both because we do have a lot going on in the company. We have improvements to Ooma Office and Ooma Enterprise, new verticals we're going to target. We have a contact center coming through this year to bring into those solutions. We have international expansion going on. We have further investment this year in AirDial because we also want to make AirDial available outside of North America. And to do that, we've got to make some changes in the product, which we're working on, and we'll have done this year. And with the acquisition of 2600hz, there's kind of a onetime effort -- probably take us a year, in all honesty, although we're 3 or 4 months into it, a onetime effort to make 2600hz stronger by the technology and applications we can bring to it from the Ooma side. And so, there's a lot going on right now.But as I look forward, which is I think what your question is about, I think a lot of these investment areas, I don't see them needing to continue for years to come. They are -- I look back to kind of the 10 years ago or 9 years ago when we went public and the strategy we had and where we wanted to take Ooma, and with these things I just mentioned, we are rounding out the kind of company we wanted to be. And so, I think that it's always in our hands, how much we want to invest in new things versus bring to the bottom line. And we do have a business model that could bring quite substantial amount of investments to the bottom line. But this year, still, we've got these areas of investment. One of our goals this year is to turn some of these areas that I just described around from being areas where we invest and don't make much money to start to get more payoff from them, whether that's international or AirDial or even our 2600hz acquisition now. And as we do that, I think these new areas will start to be -- contribute very nicely to our overall bottom line. So I think that's the best answer I can give you. But it's -- there's a little bit more work to do, but there isn't a big mountain to climb. We know where we're going, and I think we're making good progress.

[Operator]

Our next question comes from the line of Matthew Harrigan with Benchmark.

[Matthew Harrigan, analyst]

Eric, you laid out a pretty expansive TAM for AirDial, particularly including Europe, and literally tens of millions of lines. And clearly, I'm not sure I'd be shutting down the copper lines as far as AT&T, if I'm really charging $400, sometimes even more, anecdotally. But what are people doing to defer the need to upgrade because clearly, these are mission-critical? And are you seeing more in the way of competition? Because it is counterintuitive that you've got this gaping need and you've got the best product bouquet and best product features and yet it isn't really taking off. Is this just a much more glacial process than people thought, notwithstanding the move to fiber? Or are you actually seeing some competition, perhaps in Europe, where you said you had to modify the technical specs to get interest from the Vodafones and others over there?

[Eric Stang, executive]

Matthew, I think that the market is sizable. And the biggest challenge to our growth is getting awareness of AirDial into the market and getting the customers to consider us, and that's where we've been investing. We've been investing on the direct sales front, something we haven't done as much of as a company. We've been much serving smaller businesses. We've been much more marketing and inside sales driven. But I think that it's in our hands to go seize this opportunity in a bigger way, but we have to do some things different from what we've done in the past. Resale partners do help. Particularly, T-Mobile has been a very valuable partner with us, but so have some of the others that we've talked about with you already in the past. I don't want to, though, gloss over competition. I think there's 2 or 3 forms of competition that we run into. Some of them cause delay. Some of them are just competition. One is, if we're talking with a larger customer and we're -- it's not uncommon for the existing provider of those POTS lines to come back in and say, oh, we'll lower your prices back down, just don't do anything and try and push things out a year. And we do run into that sometimes. We've had customers who we thought were going to move forward who said, we're going to come back and look at this a year from now because we don't have a burning need now that the pricing has come back down and the network is intact for the moment. We do have customers where they've asked us to come upgrade quite an extensive amount of equipment. And as we go to do that with them, they discover -- they didn't know, but they discover that maybe their alarm manufacturer has already made upgrades to some of their alarm panels without them even knowing it and actually charge them for the cost of upgrading the actual panel, which is obviously what a lot of these customers want to avoid. So we run into that a little bit.And then, the third kind of competition that is hardest for us in some ways, with some particularly large customers, they may have another aggregator type provider who does all of the telecom for them as a business, and that aggregator may not have as good a -- probably doesn't have a good solution as Ooma AirDial, but promises, oh, we'll take care of it. And it's difficult when you're selling against someone who has the rest of the customer relationship around the product you're offering. But those are the competitive challenges we face. But honestly, those shouldn't stop us from getting to the goals we've already outlined to you in the past. There's a sizable market opportunity, and we definitely have, by far, the best product in the market. And the evidence that I say that with is -- in my view is, we have -- some of our resale partners were reselling other people's stuff and stopped doing it to come to us because they're having so much problem with other people's stuff. And some of our customers are literally ripping out other people's stuff to put ours in because ours is working better for them and the other stuff wasn't working well enough. I think I talked about a customer in our Q3 conference call where we were moving quickly to do that for them. We're very proud of the solution we have. It's a very good solution in the market, and we just need to continue to pursue it aggressively. And so, that's really what the challenge is still. I hope all that is a little color and helps.

[Operator]

[Operator Instructions] I'm showing no further questions in the queue. I would now like to turn the call back over to Eric for closing remarks.

[Eric Stang, executive]

Well, thank you, everyone, for joining us today. I think we made some great progress in FY '24 and sit here today with AirDial and with 2600hzReally as nice additions to our growth outlook, in addition to growing Office and Enterprise. And so, we're excited about what we can do going forward.With that, let me say thank you for joining us. Bye-bye.

[Operator]

Ladies and gentlemen, this concludes today's conference call. Thank you for your participation. You may now disconnect.