CallTower
UCaaS platforms
VoIP providers
Call center infrastructure (CCI) software
Contact center software
Call & contact center software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
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What is CallTower
CallTower is a cloud communications provider that delivers unified communications services, including business voice/VoIP, messaging, and meeting capabilities, with options to add contact center functionality. It targets small to mid-sized organizations and distributed enterprises that want a managed deployment and ongoing support for cloud calling. The offering commonly centers on integrating and operating cloud calling for major UC platforms and carrier services, rather than only providing a standalone application. CallTower also provides SIP trunking and connectivity services used to link PBXs, UC platforms, and contact center environments.
Managed UC deployment services
CallTower positions itself as a managed services provider for cloud calling deployments, including provisioning, number porting, and ongoing administration support. This can reduce internal effort for organizations that do not want to manage telephony configuration and carrier coordination themselves. It is particularly relevant for multi-site rollouts where coordination across locations and carriers is a recurring operational task.
Multiple calling connectivity options
The product supports business VoIP services and SIP trunking, which can be used to connect existing PBX environments or hybrid deployments. This flexibility helps organizations that need to keep some on-prem telephony while moving users to cloud calling. It also supports scenarios where contact center or UC platforms require specific PSTN connectivity models.
UC and contact center add-ons
CallTower can be used as a foundation for unified communications while offering pathways to add contact center capabilities depending on the chosen configuration. This can suit organizations that start with calling and later expand into queueing, agent workflows, and reporting. It provides a single vendor relationship for core voice services and related components.
Contact center depth varies
Contact center functionality is not always delivered as a single, native platform and may depend on the specific solution configuration and underlying services. Organizations evaluating advanced omnichannel routing, workforce management, or deep analytics may need to validate which features are included versus provided through partner components. This can add complexity compared with platforms built primarily as full-featured contact center suites.
Feature set depends on platform
Because CallTower commonly delivers services around major UC ecosystems and carrier connectivity, the end-user experience and admin capabilities can vary by the selected platform and licensing. Buyers may need to compare multiple bundles and understand which features come from CallTower versus the underlying UC application. This can make apples-to-apples evaluation harder than with a single-product UCaaS stack.
Less developer-centric tooling
Compared with communications platforms that emphasize programmable APIs and embedded communications, CallTower is more oriented toward managed UC/telephony delivery. Organizations seeking extensive API-first customization, application embedding, or developer tooling may find fewer native options. Integration requirements may rely more on the chosen UC platform’s ecosystem than on CallTower-specific APIs.
Plan & Pricing
Pricing model: Mixed — mostly contact-sales / custom pricing for core UCaaS, Contact Center and enterprise offerings; pay-as-you-go and per-user/month pricing used for specific services and add-ons.
Free tier/trial: No permanent free tier located on the official site; historic/time-limited promotions exist (see notes).
Example costs (official site pages):
- Unlimited Teams Conferencing — $2.99 per user/month (published by CallTower as a specific offering).
- Provisioning / MACD fee (when CallTower completes requests) — $100 per hour, billed in 15-minute increments.
- Many products (UCaaS, Contact Center, Teams Phone plans, Five9 contact center resale) require scheduling a consultation or contacting sales for custom pricing; public per-user/per-month prices are not published site-wide.
Notes & caveats:
- Several product pages (Contact Center, Five9 partnership, Teams Phone) display calls-to-action such as “Schedule a Consultation” or “Contact Us” rather than public list prices.
- CallTower has published time-limited programs (e.g., a 90-day free Extended Response Program in 2020) — these are promotional and not presented as permanent free trials on the site.
- The vendor published pricing-change notifications (e.g., April 2025 updates) for some Microsoft-related licenses, indicating ongoing price adjustments for license-based products.
Seller details
CallTower, Inc.
South Jordan, Utah, USA
2002
Private
https://www.calltower.com/
https://x.com/CallTower
https://www.linkedin.com/company/calltower/
