If you have been in the channel long enough, you have probably experienced this already: a customer calls with a problem, and you spend the first 20 minutes figuring out which provider is responsible. Then you spend the next hour on hold with that provider, who blames someone else. Meanwhile, your customer is down, and you are the one taking the call.
This is «vendor sprawl» in action, and it costs you customers, margins, and time.
For VoIP resellers, MSP partners, and cloud phone system resellers, working with providers that sell through channel partners and already have a full portfolio built takes you out of this cycle.
Why most partners end up with too many providers
Nobody starts out wanting to manage six providers simultaneously. It happens over time. You add a cloud phone system here, a SIP trunk provider there, a contact center tool somewhere else. Before long, you have a stack that works but is costly to support, difficult to explain to customers, and nearly impossible to scale.
The communications space makes this especially common. Many providers that sell through channel partners do only one thing very well, forcing you to assemble your own stack from separate parts and ensure that those parts communicate with each other. This is an ongoing cost in time and overhead that grows as your customer base expands.
What vendor sprawl really costs you
The financial impact of managing multiple providers is significant and well documented.
Research shows that 25 % of an IT team’s time is spent solely on vendor management — not solving problems, not serving customers, just managing relationships and contracts. (Spendesk, 2025) In addition, 94 % of executives say that manual vendor management leads to poor software and services purchasing decisions.
Then there’s downtime. When systems from different providers don’t work together, outages happen, and those outages are costly. According to ITIC’s 2024 Hourly Cost of Downtime survey, more than 90 % of mid-sized and large businesses report that one hour of downtime costs more than 300 000 $. For your customers, a blame game between Provider A and Provider B is a business crisis, and you’re the one they call while it’s happening.
What happens when an outage occurs in a multi-provider environment? As we wrote before, the first thing that happens is a call, then another, then an email chain where nobody owns the problem. This gap between providers is where accountability disappears.
When your tools come from a single provider with an integrated communications stack, there’s one support team, one SLA, and one point of contact when a fix is needed.
The advantage of a full portfolio
A communications provider for MSPs and VoIP resellers that covers everything — cloud, hybrid, on-premises, SIP trunking, contact center, managed network, and hardware — is a fundamentally different partner.
Here’s what changes when you work with a channel-focused UCaaS provider with a full portfolio:
You can serve more customers without adding complexity. A customer running on-premises today may want cloud next year. A multi-site company may need a hybrid solution. If your provider covers all deployment models, you never have to say “I’ll need to bring in another provider for that.” You already have the answer.
Your support burden decreases. When the phone system, network, and SIP trunk come from the same provider, troubleshooting is straightforward. There’s no gap where problems can hide. As we covered here, integrated communications significantly improve service quality, failover, and reliability for multi-site businesses — all things your customers truly value.
Your sales cycles get shorter. When a prospect asks “can you handle everything?”, the answer is yes. Simplicity closes deals faster.
Your recurring revenue becomes more resilient. Customers who buy multiple services from you through a single provider are harder to lose. The more of their stack you own, the more integrated you are into how their business operates, and the harder you are to replace.
What a full communications portfolio looks like
Not all channel-focused UCaaS providers are built the same way. Many claim to be “all-in-one” but in reality only resell assembled third-party tools. When evaluating a communications provider for MSPs, look for depth in each of these areas:
Business phone systems — cloud, hybrid, and on-premises. Your customers are not all the same. Some are entirely in the cloud, others have legacy infrastructure they are not ready to abandon, and others need both. A complete portfolio covers the three deployment models from one provider, with the same support team.
SIP trunking — your own, not from a third party. If your provider directs you to a separate SIP provider, you add a gap in accountability and lose margin. An integrated SIP trunking service means fewer handoffs and better call quality.
Contact center — built into the platform. A contact center that lives on the same platform as the phone system shares the same data, administration portal, and support team. That matters when something breaks at 3 p.m. on a Friday and your customer needs one call to get it fixed.
Managed network and connectivity — the infrastructure underlying communications. This is where MSP partners often get stuck. You can deploy the best UCaaS platform in the world, and if the network underneath is underperforming, your customers will blame the phone system. A provider that manages both eliminates that argument entirely.
Hardware — phones designed to work with the platform. Many customers still want physical devices on their desks, and when the hardware comes from the same provider as the software, compatibility is guaranteed and support is unified.
Wholesale and carrier trunking — for partners who want to go deeper into the stack and create their own margin.
What does an integrated communications stack actually look like? This analysis is worth reading before your next customer conversation.
Why channel focus matters
There is a significant difference between a provider that has a partner program and a provider that has truly built its business around the channel.
Sangoma does not sell directly. There is no in-house sales team competing with you for the same customers, no channel conflict to manage, and no scenario where your provider becomes your competitor. This structure means the support you receive on a deal — presales help, pricing flexibility, technical resources — comes from a team that is genuinely invested in the outcome.
Channel-focused UCaaS providers build their programs around partner success: deal registration, marketing resources that are genuinely usable, and technical support that understands how MSPs and VoIP resellers operate.
Vendor consolidation is already happening in the MSP channel. Barracuda’s 2025 channel predictions noted that more MSPs are intentionally reducing the number of vendors they work with. The reason is simple: fewer vendors mean less administrative overhead, cleaner support escalations, and better margin control. Partners who get ahead of this trend by consolidating around one capable communications provider will have a structural advantage over those who continue assembling the pieces.
The managed services market generated $219 billion in revenue in 2023, with nearly 80,000 partners offering these services. (Canalys, 2024) The opportunity is significant, and the partners who capture the most of it will be those who can deliver a complete solution.
How to think about building your portfolio
If you are a cloud phone system reseller or an MSP looking to build a more profitable communications practice, the most useful question is “which provider can I support?” rather than “which tools should I add?”
Here is a practical way to evaluate:
Start with deployment flexibility. Can this provider handle cloud, hybrid, and on-premises from a single platform? If not, you will manage separate stacks for different customer types — and separate support relationships.
Check the network layer. Communications and networking are not separate problems. A provider that treats them as one reduces your complexity and your customers’ risk.
Examine the contact center. Is it integrated or added on? This distinction will matter the first time your customer encounters an issue that crosses the boundary between the phone system and the contact center.
Ask about the partner program, not just the product. Margin matters. So do deal registration, support SLAs, enablement resources, and whether the vendor competes with you for direct business.
Think long term. A customer who can move from a 10-person business phone system today to a 200-person hybrid deployment with managed network and contact center in three years is worth far more than a simple product sale, and your vendor must be able to scale with that customer.
Margin Lies in Simplicity
The partners who build the most profitable communications practices are those who can say yes to almost every customer requirement without adding another tool to their stack.
Working with a vendor that has built a complete portfolio specifically for the channel means you spend time on customers rather than vendor management. Your support escalations go to a single team. Your renewal conversations focus on the overall relationship, not individual products.
For MSPs and VoIP resellers who want to grow without increasing their overhead, a complete communications portfolio is the most pragmatic business decision you can make.
Ready to see what a complete partner portfolio looks like? Talk to a Sangoma channel expert.