Q2 2023 Ribbon Communications Inc Earnings Call
Participants
Bruce W. McClelland; President, CEO & Director; Ribbon Communications Inc.
Joni Roberts
Miguel A. Lopez; Executive VP & CFO; Ribbon Communications Inc.
Christian Schwab
Erik Loren Suppiger; MD & Equity Research Analyst; JMP Securities LLC, Research Division
Gregory Mesniaeff; Research Analyst; WestPark Capital, Inc., Research Division
Ku Kang; Senior Research Analyst of Optical Components; B. Riley Securities, Inc., Research Division
Timothy Paul Savageaux; MD & Senior Research Analyst; Northland Capital Markets, Research Division
Presentation
Operator
Greetings, and welcome to the Ribbon Communications Second Quarter 2023 Financial Results Conference Call. (Operator Instructions) As a reminder, this conference is being recorded.
It is now my pleasure to introduce your host, Joni Roberts, Chief Marketing Officer. Thank you, Joni. You may begin.
Joni Roberts
Good afternoon, and welcome to Ribbon's second quarter 2023 financial results conference call. I'm Joni Roberts, Chief Marketing Officer at Ribbon Communications. Also on the call today are Bruce McClelland, Ribbon's Chief Executive Officer; and Mick Lopez, Ribbon's Chief Financial Officer.
Today's call is being webcast live and archived on the Investors Relations section of our website at rbbn.com where both our press release and supplemental slides are currently available. Certain matters we'll be discussing today, including the business outlook and financial projections for the third quarter of 2023 and beyond, are forward-looking statements.
Such statements are subject to the risks and uncertainties that could cause actual results to differ materially from those contained in these forward-looking statements. These risks and uncertainties are discussed in our documents filed with the SEC, including our most recent Form 10-K and Form 10-Q. I refer you to our safe harbor statement included on Slide 2 of the supplemental slides for this conference call.
In addition, we'll present non-GAAP financial information on this call. Reconciliations to the applicable GAAP measure are included in the earnings press release we issued earlier today, as well as in the supplemental slides we prepared for this conference call, which again are both available on the Investors section of our website.
And now, I'd like to turn the call over to Bruce. Bruce?
Bruce W. McClelland
Great. Thanks, Joni, and welcome to the Ribbon team, and thanks to everyone for joining us today. I'm pleased to report a very solid quarter with financial results above the midpoint of our guidance. Our focus on growing Enterprise and cross-selling our IP Optical portfolio was working with growth in both sales and earnings.
For the first half of the year, sales have increased 5% year-over-year and earnings have improved 66% or $8 million on an adjusted EBITDA basis. In the second quarter, sales increased 2.3% year-over-year to $211 million with continued growth in India, resulting in sales in Asia Pacific increasing 21%. While EMEA sales were up 1% and overall North American sales were down 2%.
In the Optical segment, we continued our trend of double-digit year-over-year growth for the fourth consecutive quarter with sales increasing 24% year-over-year. In the Cloud & Edge segment, as expected, sales were down approximately 9% year-over-year primarily due to lower sales to Verizon as compared to the record sales 1 year ago.
This was offset by continued strength in our Enterprise business with product sales increasing 94% year-over-year, reaching a new high of 44% of overall Cloud & Edge product sales in the quarter. This includes revenue from a very strategic win in the U.S. Federal space, the first of what we believe will be many voice modernization projects.
Government agencies need to transform their legacy communication infrastructure to a modern cloud-based unified communication platforms with high levels of security and survivability. This initial project includes product and services exceeding $10 million, a substantial portion of which was recognized this quarter.
As a result of the overall mix in the quarter, gross margins were strong at 52% and above the high point of our guidance. Combined with lower operating expenses, adjusted EBITDA was also towards the high end of guidance at $23 million. Products and service booking to revenue for the first half of the year was 1.05x with the second quarter at 0.9x following strong bookings in the first quarter.
Now, a little more detail on each of the operating segments. Financial performance for the IP Optical segment continued to improve in the second quarter with sales of $85 million and margins increasing quarter-over-quarter and year-over-year to 31%. This resulted in a $10 million improvement in adjusted EBITDA as compared to last year.
The growth in sales is directly related to the investment we've made in developing new products, resulting in a strong funnel of projects and projected continued growth with the target of being breakeven on an adjusted EBITDA basis in the second half of the year. Our focus specifically on IP routing continues to show strong results with sales of IP routing products increasing 46% quarter-over-quarter and 41% year-over-year.
Our expanding portfolio of routing solutions directly addresses a very large addressable market in multiservice edge aggregation and metro routing for both fixed broadband and mobile networks. Sales of optical transport products increased 21% year-over-year and maintenance and services revenue increased 1%.
India was once again our strongest market with sales of IP Optical products increasing 30% year-over-year, reaching the highest level since the acquisition of ECI in 2020.
Shipments included a number of new products, including our 5G Cell Site Router, Neptune XDR routers, and Apollo Long Haul Optical Transport. Deployments of the new CSR Router more than doubled in the second quarter versus Q1 as we scale the program. We expect margins in these new products to improve as volumes increase and the mix of infrastructure and capacity cards is more balanced.
Our cross-selling strategy continues to bear fruit in several regions. IP Optical sales in North America reached a new high, increasing 94% year-over-year and representing more than 15% of overall segment sales in the quarter. Following the trend in the first quarter, investment by Rural Broadband providers funded in part by federal programs was very strong with sales more than tripling versus last year.
This has become a strategic market segment for us where we're leveraging the great presence and reputation that Ribbon has established. Our strong IP Routing and optical transport portfolio is very well suited for these growing networks. Federal funding programs will increase dramatically over the next several years as existing programs such as RDOF and [ReConnect] are augmented by the much larger $45 billion BEAD funding program.
Another region where we've successfully implemented our cross-selling strategy leveraging the local presence and relationships established by Ribbon is Japan. Following several strategic wins, sales of IP Optical products in Japan exceeded 5% of overall IP Optical sales in the second quarter, up from essentially 0 in the first half of 2022.
Finally, in the EMEA region, sales grew 6% in the first half of 2023 across a variety of critical infrastructure, telecom and defense customers. We have a strong pipeline of projects planned for the second half across the region. From a supply chain perspective, issues remain localized to particular new high demand products where we're still ramping production.
We expect continued improvement in the second half of the year and start to see some benefit from cost improvements and full elimination of our remaining expedite fees. As expected, IP Optical segment margins improved from the low point in the first quarter, but are still below our normalized target. We expect further improvement in the third and the fourth quarter from both fixed cost absorption from higher sales and improving mix.
Now some highlights from our Cloud & Edge business. Overall, Cloud & Edge sales increased 9% quarter-over-quarter, but were down 9% year-over-year after a record quarter with Verizon 1 year ago. Excluding Verizon, sales in the quarter actually increased year-over-year. Margins were very strong at 67% with a favorable mix of software licenses and enterprise sales in the quarter.
Product and services book to revenue was 1x -- 1.0x for the quarter. As I mentioned, we were very excited to close a significant voice modernization deal for a major U.S. Department of Defense Agency in the quarter. We anticipate this to be one of several projects starting this year as federal agencies transition from legacy on-premise TDM, PBX or IP Centrex infrastructure to cloud-based unified communication solutions.
The unique security and survivability requirements and multi-site complexity is very well suited to Ribbon's broad portfolio of session border controllers, Telephony Application Servers, media gateways, and advanced analytics. Ribbon's expertise and experience is also a key differentiator. The sales process for these projects is certainly lengthy and complex, but working with key integration partners such as Dell and multiple managed service partners will allow us to scale and standardize the common solution for the market.
The Federal project helped contribute to the very strong quarter for sales to enterprise customers. The leading market vertical was once again financials with multiple projects, including a significant expansion project at JPMorgan and other projects at Goldman, Bank of America, and Barclays. This helped to contribute to a solid quarter for SBC sales with shipments of core SBC platforms, increasing 25% year-over-year.
In addition, the service provider sell-through business also remained strong with sales of enterprise edge SBC products up 8% year-over-year, following the almost 60% increase in the first quarter. In addition to the high activity level with enterprise customers, we've seen an increased level of engagement with service providers, evaluating options to modernize their voice infrastructure.
We were recently awarded significant projects totaling more than $10 million with 4 major service providers in multiple regions including the U.S., Europe, Middle East, and Africa, that are all focused on replacing legacy voice infrastructure with modern software-centric platforms that provide immediate operating cost benefit and significant feature advances.
In the case of these 4 operators, they have not made significant investments in this part of their network for years, but this is now a key part of their strategy to improve operating efficiency. The urgency to replace aging copper TDM networks with modern fiber-based IP networks, while minimizing service disruptions continues to grow.
With that, I'll turn it over to Mick to provide additional detail on our second quarter results, and then come back on to discuss the outlook for the second half. Mick?
Miguel A. Lopez
Thank you, Bruce. Good afternoon, everyone. The second quarter of 2023 our financial results showed continued improvement over the prior year, bolstered once again by a double-digit revenue growth in our IP Optical Networks business. Please refer to our Investor Relations page on the Ribbon website for supplemental slides summarizing our second quarter 2023 and historical financial performance.
Let's begin with consolidated corporate financial results. In the second quarter of 2023, Ribbon generated revenues of $211 million, which is an increase of $5 million or 2% from the prior year and $24 million or 13% increase from the first quarter. Non-GAAP gross margin was 52%, which is about 300 basis points lower than prior year, mostly due to the change in business segment revenue mix and a 400 basis point improvement from the previous quarter, driven by revenue increases and product mix.
Non-GAAP operating expenses were $90 million, a decrease of $6 million or 6% year-over-year and down $5 million from the previous quarter. As announced earlier this year, we implemented a strategic restructuring plan to streamline operations, reduce costs and focus on growth areas. We have optimized real estate, renegotiated supplier terms, and driven headcount synergies. We definitely are on track to exceed our operating expense reduction target of $20 million year-on-year.
Our non-GAAP net income was $8 million which generated a non-GAAP diluted earnings per share of $0.04. Our non-GAAP tax rate for the quarter was 30%. Our interest expense for the quarter was $6.8 million, versus a $2 million increase from the previous year.
Non-GAAP EBITDA was $23 million in the quarter, which is a $2 million or 9% improvement year-over-year and a positive change of $25 million from the previous quarter. Our basic share count was 170 million shares and our fully diluted share count was 175 million shares for the quarter.
Now, let's look at the results of our 2 business segments. In our Cloud & Edge business, second quarter revenue was $125 million, a decrease of 9% year-over-year. As you may recall, the second quarter of 2022 was the highest revenue for the year for Cloud & Edge led by strong sales to our largest customer. Software as a percentage of total product revenue was 57%, which is in line with prior year and a 16 percentage point increase from 41% in the first quarter.
The Cloud & Edge business had a non-GAAP gross margin of 67%, slightly down from 68% in the prior year and up 540 basis points from the first quarter. Adjusted quarterly EBITDA was $35 million or 28% of revenues.
Let's turn to our IP Optical Networks business results. We recorded second quarter revenue of $85 million, which was an increase of $17 million or 24% year-over-year and $14 million or 19% versus prior quarter led by growth in North America, India, and Japan.
Non-GAAP gross margin for IP Optical was 31%, which is about 350 basis points higher than the previous quarter and 200 basis points higher than the prior year. Fixed cost absorption is a key factor in IP Optical Networks' gross margin. At current levels, for every $10 million of incremental revenue, the gross margin improves by about 200 basis points.
For example, if revenue grows $10 million from the current level of $85 million to $95 million, the current gross margins of 31% will improve by 200 basis points to 33%. With more revenue increases and improvements in product mix, we can achieve our target gross margins in the mid to upper 30% for IP Optical Networks.
Non-GAAP adjusted EBITDA loss for the quarter was $12 million, which is an improvement of about $10 million year-on-year and over the previous quarter. With revenue growth in the second half, improved mix of products and lower operating expenses, we continue to strive for profitability in this business segment.
We ended the quarter with $35 million of cash and cash equivalents, which is a decrease of $11 million from the previous quarter. Our revolver remained undrawn at quarter end. Cash used for operations was $3 million, capital expenditures were just $2 million, and we made our quarterly $5 million term loan repayment. We expect to have higher working capital requirements in the third quarter as we grow the business in the second half.
Our senior term loan balance is $245 million and our preferred stock and warrants are valued at $55 million. For the bank covenant calculations, which include preferred equity and total debt among other adjustments, we comfortably met both of the amended term loan covenant metrics in the second quarter.
Now, I'll turn the call back to Bruce to provide more comments on our outlook for the third quarter.
Bruce W. McClelland
Great. Thanks, Mick. As I look into the second half of the year, it's clear that our strategy to diversify the company has become increasingly important and is working. From an industry perspective, enterprise has become a significant new growth vector for the company that counterbalances variances in service provider spending.
From a portfolio perspective, the addition of IP Routing and optical transport has opened major new opportunities such as the U.S. Rural Broadband segment. And from a geography perspective, the company is very well positioned in high-growth areas such as India and Africa.
Our financial projections for the second half of the year benefit from this strategy and are based on 4 key assumptions. First, in the North American service provider market, we expect the elevated spending by U.S. Rural Broadband providers to continue and likely increase over the next several years as new funding sources become available. Our portfolio is a great fit and we're taking share.
We expect the Rural Broadband opportunity to offset more constrained spending by Tier 1 U.S. service providers in 2023, with increased spending anticipated in 2024 for voice network modernization, given the compelling business case to reduce operating costs. As I mentioned earlier, we've also seen increased activity in this area across multiple regions with service providers who have not made this a priority in the past.
Second, we will continue to gain share in the enterprise market vertical as investment in communication and collaboration platforms enables companies to improve their efficiency and effectiveness. This includes several major U.S. Federal opportunities that we anticipate being awarded in the second half where we are very well positioned and expect to generate significant revenue.
Where it makes sense, we're transitioning the business model with enterprise customers away from perpetual licenses to use subscription models that will create a more predictable recurring revenue stream for the business.
Third, the growth we've experienced in India and several other countries in the Asia region will continue as 5G deployments accelerate and the strategic wins we've announced in the region enable us to gain share in both IP Routing and optical transport. I expect a number of new opportunities to mature and create further growth in 2024 in this region.
And finally, in the EMEA region, the second half of the year looks strong, with increasing investment from critical infrastructure providers in Europe and service providers in Africa and the Middle East. Underpinning our strategy is the investment we've been making to expand our portfolio and introduce new products that enable a more open architecture and ecosystem.
As we announced at the OFC Optical Conference earlier this year, we're very excited about the new Apollo 9400 platform that will be first to market with the industry-leading 1.2 terabit per second wavelengths, leveraging the latest in 5 nanometer DSP Silicon. The 9400 uses less than half the power per bit of competing solutions with industry-leading density in a compact modular pluggable form factor. We expect to be in customer testing this quarter and early production in the fourth quarter.
In our IP Routing portfolio, we continue to expand our Neptune XDR 2000 series with new variants that significantly expand our addressable market and the types of networks where we can be deployed. The latest new product that begins to ship this quarter is the Neptune 2400 which is a perfect fit for metro networks supporting mobile xHaul applications and broadband aggregation.
Equally important is the growing set of IP Routing protocols supported by the platform, including next-generation segment routing capabilities and c EVPN. The significant investment we have made in expanding our IP Optical product line has resulted in 19% growth in the first half of 2023.
We expect to continue that trend in the second half supporting the 15% plus growth target for the year. We also continue to target profitability on an adjusted EBITDA basis for this segment in the second half of '23 as higher volumes enable improved margins and better regional mix.
In our Cloud & Edge segment, the strong growth in enterprise sales in the first half has mostly offset lower U.S. service provider spending. We expect third quarter financial performance to be similar to the second quarter, followed by our typically seasonally strong fourth quarter. For the full year, we expect Cloud & Edgee earnings contributions to be higher than 2022 primarily due to lower operating expenses.
Our early view on 2024 indicates a recovery in spend by North American service providers for voice network modernization, which would be additive to the continued growth in Enterprise and Federal. Based on the above backdrop and assumptions for the third quarter, we're projecting revenue in a range of $215 million to $225 million.
Non-GAAP gross margins of 51.5% to 52.5% and non-GAAP adjusted EBITDA in a range of $26 million to $32 million for the quarter. For the full year, we continue to believe our revenue guidance range of $840 million to $870 million is achievable. Operating expenses are on track to exceed the lower spending targets we established.
Due to the overall projected mix, adjusted EBITDA is currently tracking to the lower half of our $95 million to $110 million range, which will be a significant 50% improvement year-over-year. We have a great pipeline of opportunities, and as with most years, we expect the fourth quarter to be the strongest quarter of the year.
Operator, that concludes our prepared remarks and we can now take a few questions.
Question and Answer Session
Operator
(Operator Instructions) Our first question is from Christian Schwab with Craig-Hallum Capital Group.
Christian Schwab
Congratulations on the strong results. So, (technical difficulty)
Bruce W. McClelland
Hey, Christian. I apologize. You're breaking up I think.
Christian Schwab
Hello?
Bruce W. McClelland
Okay. Try again, Christian.
Christian Schwab
I'm sorry about that. I was asking on Rural Broadband. Could you tell us how big that could be over a long period of timeframe?
Bruce W. McClelland
Yes. Good to connect again. So, obviously, we've seen that grow substantially here this year. I think we're up about 3x from what we were doing last year. I think there are some upper bounds just from a construction resource perspective in the whole industry. So, it's hard to predict exactly what the growth looks like next year.
It's not a lack of funding at this point, particularly as BEAD funding starts to flow into the second half of next year. I think the limitations are going to be more at the pace that they can do construction and drive fiber. But as the funding envelope increases, the amount of addressable market for us certainly is going to expand. So, I expect it to grow pretty well going into next year.
Christian Schwab
And then on the IP Optical business, can you tell us how many customers that you're selling to currently and what we should anticipate that number of customers to expand to, say, by the end of '24 as [the] introductions come out?
Bruce W. McClelland
Yes. So, it's a good question. I don't have a number off the top of my head. In a particular quarter, the majority of the revenue will come from several dozen customers within the quarter, let's say, and we are definitely adding customers every quarter. Number of our projects are with critical infrastructure projects or operators. And so, every quarter there is somebody new being added.
We do try and kind of keep it a good cadence of press releases every quarter on some of the more strategic adds we've had within a quarter. So, I think that gives you an indication of kind of the velocity every quarter of new names being added. And of course, some are smaller projects, and some kind of account for a much larger revenue stream in the future.
Christian Schwab
And then my last question, I know you guys have talked about for some time landing material business on the optical side with the top Tier 1 carriers. Do you have any update for us on how that's going or is that something you're enthusiastic for over the next 12 months?
Bruce W. McClelland
Yes. So, there is definitely a healthy pipeline here in 3 primary regions: North America, Europe, and Asia-Pac. Obviously, we've announced some already with the expansion with Bharti, with the wins in Africa with MTN, Singtel, Optus in different regions, Rogers in Canada. We're clearly kind of building momentum. In my remarks I talked about Japan as a market that's new for us.
Again, that's a region where Ribbon had a great presence with our voice infrastructure products. And although we haven't announced any names there, I think those are pretty significant opportunities and wins for us. And I think as I mentioned, it was about 5% of revenue in the third quarter. So stay tuned, we're definitely focused on that part in addition to kind of building the momentum with regional telecom and with critical infrastructure providers.
Operator
Our next question is from Tim Savageaux with Northland Capital Markets.
Timothy Paul Savageaux
Couple of questions. Maybe following on some of that recent discussion, and I think you talked about U.S. -- for IP Optical U.S. at 15%. I assume, Rural was the vast majority of that. I think you talked about U.S. Rural being 10% of IP Optical revenue last quarter, and it's clear you expect that to grow. My question is, how should, we -- and you've talked about Japan. How should we relate that to India? And you talked about growth in India. I assume that's your single largest market, e.g., greater than the U.S. from a country standpoint, if not a region standpoint. But is there a scenario with this Rural Broadband growth out a couple of years? Can that become bigger than some of these big markets you're talking about now? Can you just kind of maybe size India where it is right now? And what sort of margin implications does that -- U.S. Rural Broadband growth have for the segment?
Bruce W. McClelland
Yes. All good questions. So, the 15% of sales was a North American number, and Rural Broadband a significant portion of that. As you recall we've got a number of other customers in North America, including Rogers up in Canada, that all contribute to that 15% of sales. But the Rural Broadband portion was more than half of that certainly in the quarter. As you kind of compare it to India, India is still significantly larger than North America today. I think more than 2x, Mick, right, in that ballpark?
Miguel A. Lopez
Yes.
Bruce W. McClelland
So, of course, we have 1 large customer in India with Bharti that we've enjoyed good growth here this year. As I mentioned, getting kind of back to maybe where we were a few years ago was our strongest quarter we've had since we merged the companies together.
So, back to your final question on how big can Rural be. We're -- in some ways we're just getting started. I mean, we've had some really good success with customers that know us well, that have other products from us deployed today, and that's allowed us to start to build a good pipeline with new customers. I don't know if it can be bigger than India. I mean, India's 1.2 billion people, 3 major operators there that I think are going to drive a lot of scale. We're deployed in enterprise markets in India as well with our partners like Tata Teleservices and folks like that. So I think that's going to remain a really significant market for us.
Timothy Paul Savageaux
And maybe a similar question around Japan. I mean, I think you're implying your production there is likely with Tier 1 carriers, but how significant can that get for you over time?
Bruce W. McClelland
Again, we're kind of just entering the market. I mean, it was great to see some of the momentum there with several operators, a number of different use cases, both in optical as well as in IP. So, I'm pretty excited about that market. We've got a great infrastructure in place in Japan. It was one of the kind of strategic elements to the combination several years ago and focused on cross-selling. It's taken us a while to go through the vetting process, go through the testing process now into commercial service. So it will add another plank to the operation here for us for sure.
Timothy Paul Savageaux
And last question for me. Obviously after a very strong Q1, IP Optical orders came down pretty significantly in Q2. I guess, how would you characterize that and what are your expectations for orders in IP Optical in the second half?
Bruce W. McClelland
Yes, so there were kind of 2 reasons why the order of velocity was lower in the second quarter, all related to the strong first quarter. I'd mention previously that part of the bookings in Q1 was a large multi-year agreement with defense operation in Europe. A portion of those orders were for the second quarter, so we were shipping those in the second quarter. Normally, we would've gotten those bookings in the second quarter, but they were all accelerated into Q1.
And then the other part was around some of the expansion -- market share expansion in India with Bharti and some of the larger orders that we're shipping against in the second and third quarter. So I'm not, although -- obviously numerically the number is down in the second quarter, for the first half -- I think we're at [1.15] for IP optical for the first half or [1.14], some number like that.
So, no, I still feel good. Obviously, for the second half of the year, we're still projecting growth going into the second half. I think to achieve our 15% plus annualized growth number, the second half will grow more than 10% versus last year. So, we're feeling good about the velocity in the second half here.
Operator
Our next question is from Dave Kang with B. Riley.
Ku Kang
First question is on the IP Optical. Just wondering if you can talk about their EBITDA trajectory in second half and into next year? I mean, will they be positive? And just wondering if it will dip into negative in first quarter next year before becoming positive in second quarter? Just if you can help us out?
Bruce W. McClelland
Yes. So I think, if you do the modeling on the business here with assumptions on margin and OpEx and whatnot, the target for the second half is to get to EBITDA breakeven and positive. So that's what the whole team is focused on. That's the reason we've done the acquisition this business needs to contribute. You need to be in the $100 million plus range per quarter with -- where margins are projected to be there, and that's what the target is for the second half.
We do find that the first quarter tends to be a lower quarter every year. So whether we'll be at that level or not in the first quarter is a little too early for me to provide additional commentary on. But the focus here is on the second half and making sure we get to that mark in the third and fourth quarter combined.
Ku Kang
And then I believe, regarding the supply chain situation, I think that impacted your revenue by about $10 million in first quarter. Just wondering what that was in second quarter?
Bruce W. McClelland
Yes. It was very similar, Dave. Really the same sort of issues as we're ramping in particular our Long Haul products and our Cell Site Router products. We could have shipped more in the quarter again, not unlike others, I'm sure, right? So I didn't comment on it this time. But very, very similar in the second quarter.
I do think, we were -- we get more caught up in the third quarter on some of the longer lead time parts on the new products. So as I mentioned, I think, as we get into the second half of the year, the majority of those existing issues are behind us. Who knows what new surprises we find in the future.
Ku Kang
So should we expect something like maybe $5 million impact in third quarter or is it going to just go to 0?
Bruce W. McClelland
It's in that ballpark probably, Dave. There's always something that ends up kind of hanging out to the next quarter. So it's probably in that ballpark, yes.
Ku Kang
And then, just wondering what the split is between -- I know you gave the IP Routing growth. Just wondering if you can split what IP versus optical is? And what's their margin differential, between IP and optical?
Bruce W. McClelland
Yes, so I think -- we've talked historically that the split is in the 35% to 40% range for IP Routing. Obviously that's been increasing over the last several quarters with the growth rate around IP. I think we're -- I guess over 40% now from a product revenue perspective with the recent growth. Now you've seen both businesses grow.
I think optical grew about 20% and IP grew about 40%. So optical is not standing still either, it's growing. But I think the mix continues to shift more towards IP Routing and that's what we expect to see over time as well.
Ku Kang
And what's their margin differential? Is it about 5% 10%, something like that?
Bruce W. McClelland
Yes, so we don't break that out. It varies by region and the type of product. If you're -- if it's a higher volume Cell Site Router type product that tends to be a little lower margin. If it's more a high performance 4 terabit routing platform, that's much better margin. And so it can vary a little bit, Dave, just depending on the mix and the type of products we're shipping in the quarter. In general, the trend is towards higher margin on the IP products.
Ku Kang
And my last question is actually a clarification. Did you say C&E will be kind of flat this year or maybe I misheard?
Bruce W. McClelland
Yes, so, I've characterized the third quarter as being similar to the second quarter with a stronger fourth quarter, and overall in the second half the earnings contribution will be up from last year. So, I've kind of given those 2 data points.
Operator
Our next question is from Greg Mesniaeff with WestPark Capital.
Gregory Mesniaeff
My question is on the Cloud & Edge segment. You had mentioned in the call that you're in the process of transitioning your revenue model from one of a perpetual license to a subscription based model, and I totally understand why you're doing that, namely to smooth out the lumpiness that this business has had. Can you kind of give us a little more color as to what the steps are to kind of proceed down that path, and where you are in that process? In other words, are you keeping your existing customers on perpetual licenses and starting new ones with the subscription model? Or are you weaning the older customers off the perpetual license to the subscription model? And then I have a quick follow-up.
Bruce W. McClelland
Yes. Good question. So most of it's -- first of all, it's mostly in the enterprise space, not in the service provider or the carrier space. Most of the acceptability or interest is in the enterprise side. There's a couple of different models there. There is -- if you look at our Ribbon Connect offer as an example, which is a completely cloud-based multi UCaaS platform for Microsoft Teams or Zoom or Cisco Webex, that's a per subscriber per seat per month pricing model. And that's a fairly small business today, but that's obviously a typical as-a-service type revenue stream, small but growing.
The other type kind of approach to subscription licenses is moving from a perpetual license for, let's say an SBC, to a term license, and perhaps an enterprise-wide type license, an ELA that includes software licenses, it includes maintenance, it includes professional services, and that's a much more kind of significant transition that we're underway.
And it provides the ability to renew those licenses every year or whatever period that you set up the term license for. And that's probably the most significant transition. And it's a combination of both new customers and existing customers. Many of the products like a session border controller or our analytics platforms which are highly software -- high software content really lend themselves to that model. And we're finding a lot of interest in moving in that direction.
Gregory Mesniaeff
Are customers being receptive to this transition would you say, especially the legacy, larger ones on carrier side?
Bruce W. McClelland
Yes, I wouldn't describe it as we're trying to force it. We'll meet the customer wherever the economics are best to meet their needs. So most of the cases, this is not just a receptive thing. The customer is very interested in that type of approach. Again, it's mostly around enterprise, not so much around the carrier side. Although the Ribbon Connect platform, as I mentioned is used by a number of carriers and it supports their managed service offering to enterprises. So it fits that model pretty well.
Operator
Our next question is from Erik Suppiger with JMP.
Erik Loren Suppiger
A couple of questions. First off, did you see -- I believe Verizon was a 10% customer. Did you see some of the adjustments to inventory that were noted by the likes of Ericsson and Nokia in terms of some of these carriers working down some of their inventories? Or was Verizon in the range that you had been expecting?
And then secondly, your guidance implies Q4 gross margins picking up a fair amount. Is that just a normal seasonal uptick or is there anything in Q4 that's going to be particularly beneficial to gross margins?
Bruce W. McClelland
Yes. So from a Verizon perspective, we had just a great quarter 1 year ago in the second quarter of 2022. We had a variety of voice modernization programs with them, all basically going to revenue in the second quarter. So in a lot of ways it's not a fair comparison. It's the best quarter we ever had with Verizon 1 year ago. And so the stepdown year-over-year is pretty substantial.
As I mentioned though, if you excluded Verizon from our revenue in both ends, the service provider business was actually up year-over-year. So, it was just -- it's primarily a phenomenon as the strong quarter 1 year ago. So it wasn't -- what you're hearing, I don't think from others around inventory build and those sorts of issues. Erik. It's really just the year-on-year comparison that's a little tough.
And it ended up exactly where we predicted it was going to be in the quarter and very consistent to the previous quarter. I think if you see our 10-Q that'll come out, you'll be able to see the percentage of revenue that we report for our 10% plus customer there.
From a Q4 margin perspective, yes, so we do expect Q4 margins to be stronger in both businesses. As Mick mentioned, pretty -- in a lot of detail the increased margin around IP Optical a lot due to just the increased level of revenue and the fixed cost absorption driving a higher gross margin percentage in Cloud & Edge. It tends to be the mix.
Obviously, the velocity makes a difference as well at the revenue level. But we have a good pipeline of larger deals, both enterprise and service provider in Q4. We have, as I mentioned, this kind of transition on models towards more annual ELAs that benefit us and just the software mix in general stronger in Q4. But your model sounds correct.
Erik Loren Suppiger
And then lastly, last quarter you had discussed new products contributing about 20% of IP Optical revenues. Can you provide any update or any color that you can add to that?
Bruce W. McClelland
Yes, I think, it's similar. Erik, unfortunately, I don't have that number in front of me, so I'm going to have to go do some more research on it.
Operator
Our next question is from Tim Savageaux with Northland Capital Markets.
Timothy Paul Savageaux
Sorry about that. I just wanted to follow-up. And it looks like -- and the subject is kind of profitability in IP Optical. It looks like in Q2 you brought your cost base down pretty significantly in terms of the breakeven revenue run rate in IP Optical in particular, I don't know, $5 million, $6 million, something like that, and that's reflected in your overall OpEx performance as well.
So -- and I guess the question is, is that about right? Is that where you expect it to stay? It looks like you're forecasting your EBITDA loss in IP Optical to be cut in half or maybe a little more again here in Q3. I'm assuming that's revenues increasing gross margins, as Mick described, and kind of flattish sort of OpEx in that kind of high 30s range. Is that a reasonable way to look at things, and then obviously another quarter that you're looking to be EBITDA positive in Q4?
Bruce W. McClelland
Yes. So I don't want to parse the Q3 guidance too much. It is directionally correct -- what you said is absolutely directionally correct. In order to get the breakeven in the second half, it's a combination of Q3 and Q4 and I think the Q4 volumes are higher, so the profit will be higher. But the cost improvements, the spending improvements that we've made, we're ahead of plan. We're ahead of what we committed we were going to do for the year. A portion of that's benefiting both of the businesses.
If I remember right in Q2, I think we're about $3 million better on OpEx in IP Optical, but there's also some savings above the gross margin line in the cost of service and whatnot as well. We do think that is -- that plays forward at that level, certainly at the company level. I think Mick, we were at $90 million of OpEx in Q2, and we expect to be in a similar range, plus or minus $1 million sort of thing in Q3 and Q4, and that would get us to greater than the $20 million net savings for the year in OpEx.
Operator
There are no further questions at this time. I would like to turn the floor back over to Bruce McClelland for any closing comments.
Bruce W. McClelland
Okay, great. Well, thanks, Paul. Thanks everyone for being on the call here with us again today, your interest in Ribbon Communications. We have a number of upcoming investor conferences, so we look forward to meeting everyone there and continuing the dialogue. Thanks very much, operator, appreciate your help. And that concludes our call.
Operator
This concludes today's conference. You may disconnect your lines at this time. Thank you for your participation.
