CallTower review & pricing
Our verdict
The engine-agnostic pick: if you've standardized on Cisco or Microsoft but want carrier-grade service and one support relationship, CallTower wraps your chosen platform with managed delivery. Pricing is quote-based through partners.
Overview
CallTower delivers UCaaS and contact center built on multiple technology engines — Cisco, Microsoft Teams and Zoom — plus its own CoreXT platform, letting customers pick the stack while CallTower provides service, support and billing.
Best for
- Cisco or Microsoft Teams shops wanting managed UCaaS delivery
- Multi-site organizations consolidating voice vendors
- Teams that want UC and contact center from one provider
Pros & cons
What we like
- Multi-engine options (Cisco, Microsoft, Zoom, CoreXT)
- Strong managed service and support reputation
- Global calling and multi-site expertise
- Bundles UC and contact center
What to watch
- Quote-based pricing with no published rates
- Experience varies by chosen underlying engine
- Brand awareness limited outside the channel
Key facts
| Starting price | custom (quote-based) |
|---|---|
| Pricing model | Quote-based per-user contracts via channel partners |
| Best segments | Mid-market, Enterprise |
| Founded | 2002 |
| Headquarters | Lehi, Utah |
| Website | www.calltower.com |
Feature snapshot
| Cisco-powered UCaaS | ✓ Included |
|---|---|
| Microsoft Teams Phone options | ✓ Included |
| Contact center (UCaaS+CCaaS) | add-on |
| Global calling | ✓ Included |
| Managed rollout & 24/7 support | ✓ Included |
Ranked in
Best Microsoft Teams Phone Providers
CallTower comparisons
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This review is editorial and independent. Pricing references published list rates as of September 2026 and changes frequently — always verify with a current quote. Vendor names are trademarks of their respective owners; The VoIP Advisors is an independent advisory firm and is not affiliated with CallTower.