SIP Trunking for
3CX Phone System
Reliable SIP trunks optimized for 3CX. Works with 3CX on Windows, Linux, and Cloud. Easy setup with our configuration template.
3CX Optimized
Tested and verified with all 3CX versions
Cloud Ready
Works with 3CX Cloud and self-hosted
Secure
TLS + SRTP encryption supported
Instant Setup
Up and running in minutes
3CX Setup Guide
Add IPComms as a SIP trunk in your 3CX Management Console
Add a New SIP Trunk
In 3CX Management Console, go to SIP Trunks and click Add SIP Trunk.
Select Generic SIP Trunk from the country list.
Enter Trunk Details
Configure the trunk with your IPComms credentials:
Trunk Name: IPComms
Registrar/Server: sip.ipcomms.net
Outbound Proxy: sip.ipcomms.net
Number of SIM Calls: [Your channel count]
Type of Authentication: Register/Account based
Authentication ID: [Your IPComms Username]
Authentication Password: [Your IPComms Password]
Configure DIDs
Add your DIDs in the trunk configuration:
Main Trunk No: [Your main DID]
DID Format: E.164 (e.g., +15551234567)
Set Outbound Rules
Go to Outbound Rules and create rules for:
Local Calls: Calls to NXXNXXXXXX route via IPComms
Long Distance: Calls to 1NXXNXXXXXX route via IPComms
Caller ID: Use your IPComms DID
Test Your Trunk
The trunk should show as "Registered" in green. Make a test call to verify inbound and outbound work correctly.
Simple Pricing for 3CX
Transparent rates, no hidden fees
Metered
Best for predictable calling volume
Pay-As-You-Go
No monthly channel fees
3CX FAQ
Which 3CX versions do you support?
We support 3CX v16, v18, and v20. Both Windows and Linux deployments work great.
Does it work with 3CX StartUP (free)?
Yes! Our SIP trunks work with all 3CX editions including the free StartUP version.
Can I use 3CX WebClient with IPComms?
Absolutely. WebClient, softphone, and mobile apps all work seamlessly with our trunks.
Do you support G.729 codec?
Yes, we support G.711 (ulaw/alaw), G.722 for HD, and G.729 for bandwidth-constrained environments.
Ready to connect your 3CX system?
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