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Communications Platforms

Platforms Cloud Hybrid On-Premises

Collaboration Tools

TeamHub Video Conferencing

PRODUCTIVITY AND HARDWARE

Productivity Apps Phones & Hardware

MANAGED NETWORKS

Managed Network & Connectivity Managed Security Managed 5G Access Managed Power

MORE SOLUTIONS

Contact Center as a Service Open Source Microsoft Teams Integration Sangoma Scribe SIP Trunking & Faxing Wholesale SIP trunking

Sangoma Menu Image

Not sure how we can help your business?

Talk with an expert

Solutions

Industry Sectors

Education Healthcare Hospitality Manufacturing Retail

Sangoma Menu Image

Built for your industry’s unique needs

Talk with an expert

Partners

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Partners Program Find a Partner

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Solutions Built for Your Industry’s Unique Needs

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New Digium D45 IP Phone Offers Gigabit Networking for Entry-Level Market

New Digium D45 IP Phone Offers Gigabit Networking for Entry-Level Market

The Best & Most Secure Voice Over IP (VoIP) Phone System

The Best & Most Secure Voice Over IP (VoIP) Phone System

Understanding Location Routing Numbers

Understanding Location Routing Numbers

Digium Rolls Out New Partner Program For Switchvox Cloud Hosted VoIP [CRN]

Digium Rolls Out New Partner Program For Switchvox Cloud Hosted VoIP [CRN]

Digium Signs Master Agent Partnership With Acuity Technologies

Digium Signs Master Agent Partnership With Acuity Technologies

Digium Signs Master Agent Partnership With Clarus Communications

Digium Signs Master Agent Partnership With Clarus Communications

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©2026 Sangoma US Inc. All rights reserved

What is SIP Trunking?

Session Initiation Protocol (SIP) trunking is the digital method of making and receiving phone calls and other digital communication over an internet connection. The term trunk in SIP trunking refers to virtual phone lines that you can use to make phone calls over the internet to anyone with a phone number. SIP trunks not only carry voice calls, but it’s also used for multimedia communication that combines voice, video and messaging services.

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