SIP Trunk Compatibility: Works with 3CX, Avaya, Asterisk & More
SIP Trunking

SIP Trunk Compatibility: Works with 3CX, Avaya, Asterisk & More

Written by Everett Kildare · Jan 9, 2026 · 5 min read

One of the best things about SIP trunking is that it works with the PBX system you already have. No rip-and-replace required.

Compatible Platforms

WOCOM's Flexi-SIP Trunk has been tested and certified with: 3CX, Avaya IP Office, Asterisk/FreePBX, Cisco UCM, Grandstream UCM, Panasonic KX series, Mitel MiVoice, and Yealink T-series.

Technology setup

Setup Is Straightforward

For most systems, configuration takes under an hour. WOCOM provides step-by-step guides for each platform, and our technical team can assist with remote configuration at no extra cost.

What You Need

A static IP address (recommended), a SIP-compatible PBX or gateway, and a stable internet connection with adequate bandwidth for your call volume.

Continue exploring

Flexi-SIP Trunk → SIP Trunk vs PRI → Plans & Pricing →

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Written by
Everett Kildare
Voice & Infrastructure Specialist · BSc, Information Technology · 25 years in voice & virtualization infrastructure

Everett Kildare is WOCOM's voice and infrastructure specialist, with more than 25 years of experience designing and running carrier-grade voice, SIP and virtualization infrastructure. Holding a BSc in Information Technology, he has built, secured and migrated phone systems for businesses of every size. Everett writes WOCOM's technical coverage of SIP trunking, cloud PBX, contact centres, business continuity and migration.

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