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Discover a comprehensive Solutions Center hub with resources, documentation, and expert guidance for all your business communication needs.

Access our dedicated customer service team around the clock, every day of the year. Get immediate assistance when you need it most.

Stay informed with real-time service updates, maintenance alerts, and important system notifications to keep your business running smoothly.

Monitor live system performance updates and network health metrics to ensure optimal communication service delivery across all platforms.

Technical support escalation for critical issues

Project implementation and deployment issues

Sales inquiries and contract negotiations

Billing disputes and account management

Strategic account growth and optimization

There is no better relationship in the industry than ones CallTower has with its partners. Here are just a few things that make working with us truly awesome.

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At CallTower, we consider our channel partners as family, valuing successful relationships through excellent support and financial rewards.

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Discover Are benefits of our Agency Partner Program for your business. Unlock revenue streams, scalable growth, and extensive support.

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CallTower's MSP Partner Program empowers service providers by simplifying taxation and enhancing efficiency through tools including the GTx self-service platform.

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CT SIP​

Scalable, secure SIP trunking with HD voice and video, bursting for peak demand, plus auto‑failover, call routing, robo‑call blocking and SMS — all managed via our intuitive Connect portal.
CT SIP

Lower cost, more flexibility

CT SIP Trunks provide one concurrent call and includes inbound usage, with features such as 911, directory listing and caller name.

Features

Phone System Co-location

Co-locate your phone system in our data center for security and business continuity. Colocation also puts your phone system right where your SIP services are, so there’s less latency and better voice quality.

Auto-attendant & Voicemail Box

Should your phone system or network fail, or possibly doesn’t support auto attendant, you can take advantage of our AA or VM in the cloud to provide uninterrupted services to your callers.

SIP Edge Router

Our SIP edge routers reserve bandwidth for voice so call quality is maintained even when bandwidth utilization exceeds available capacity.

Call Screening Capabilities

Setup anonymous call rejection, which will automatically block calls from private, unknown, and anonymous numbers. You can also enter specific numbers to be blocked using selective call rejection.

Advanced Call Routing

Prepare your entire trunk or any DID’s for “unavailable call forwarding”. This allows your callers to reach an emergency phone number, answering service, cell phone, etc. during a phone system failure or network down event.

Emergency Notifications

Provides an extra level of safety and protection by notifying people in your organization via phone and email when someone makes a 911 call.

CT SIP
CT SIP

CT SIP