Midsize Business Phone Systems
50–200 employees
You've outgrown the starter plans but you're not ready for an enterprise rollout. Compare cloud phone systems built for 50–200 person teams that need real CRM integration, hybrid working and a clear path to scale.
Overview
Phone systems for midsize business
Midsize is the trickiest band to buy in: too big for consumer-grade tools, too small to absorb a botched enterprise rollout. The right system grows with you for the next 3 years.
Most companies in the 50-200 band hit the same wall: their original phone setup was chosen when they were 15 people, and it now creaks under hybrid working, multiple offices and a sales team that lives in a CRM. The good news is the cloud UCaaS market is exceptionally strong here — you have genuine choice.
Focus your shortlist on three things: how cleanly the system integrates with your CRM, how it handles hybrid and mobile working, and whether it can grow into a light contact centre when your support or sales team needs it. Avoid vendors that price aggressively at the small-business tier but become expensive once you need integrations and analytics.
Must-haves
What midsize business buyers actually need
The non-negotiables we screen for when shortlisting providers at this size.
Native CRM integration
Click-to-dial, screen-pops and call logging in HubSpot, Salesforce, Pipedrive or your CRM of choice.
Mobile + desktop apps
Real apps your team will actually use — softphone, SMS, video and presence on every device.
Multi-site / hybrid ready
Number porting, site-based routing and call flows that work whether staff are in-office, home or mobile.
Light contact centre option
Queues, IVR, call recording and basic analytics — without forcing you into full enterprise CCaaS pricing.
Self-serve admin
Add a user, change a routing rule or pull a report without raising a vendor ticket.
Transparent, predictable pricing
Per-user pricing with clear add-ons — not surprise bills for international calling or extra numbers.
Common challenges
What buyers at this size struggle with
The patterns we hear most often — and how the right system fixes them.
Challenge
Outgrew our small-business plan
What works
Move to a true UCaaS provider with per-user pricing, real admin controls and an upgrade path.
Challenge
Sales team isn't logging calls in the CRM
What works
Pick a provider with a native, two-way CRM integration so logging is automatic, not a behaviour change.
Challenge
Hybrid working is messy
What works
Standardise on cloud apps with presence and routing so customers reach the right person regardless of location.
Recommended providers
Top providers for midsize business
Independent shortlist — we don't take vendor commission for placement.
Buying checklist
The midsize business buyer's checklist
Run every shortlisted vendor through this list before you sign.
- List your top 3 integrations (CRM, helpdesk, calendar) — confirm native support
- Test the mobile app with 2–3 actual sales/support users
- Get pricing for current headcount and headcount + 50%
- Confirm number porting timeline and any gaps in service
- Check whether contact-centre features are available without a re-platform
- Ask for a customer reference at your size and industry
FAQ
Frequently asked questions
The questions buyers at this size ask us most.
Is VoIP reliable enough for a 100-person business?
Yes — modern UCaaS providers run on tier-1 voice networks with 99.99%+ uptime SLAs. The biggest risk to call quality is your office internet, not the provider. Make sure your network is QoS-tagged and you have a backup connection.
How long does it take to switch providers?
For a 50–200 person business, most cloud rollouts take 2–4 weeks end-to-end, including number porting. The biggest variable is how clean your existing call routing and number inventory is.
Do we need a contact centre product, or is UCaaS enough?
If you have a defined support or sales queue with 5+ agents, SLAs and reporting needs, a light CCaaS add-on usually pays for itself. If calls are ad-hoc, UCaaS with call queues is plenty.
Get a shortlist matched to your team
Answer a few questions about your business and we'll match you with the 3 best-fit providers for 50–200 employees.
Start free matching