Outbound Calls Failing on 3CX v20 Free Edition with Twilio SIP Trunk

[yawdcode]

Hello,

I’ve been trying to set up a SIP trunk to Twilio on 3CX version 20 (free edition), but I’ve run into an issue with outbound calls failing. This same configuration has worked on other versions and with other PBX systems, but it does not seem to work on 3CX v20.

Here’s the situation:

• Inbound calls: Working fine.
• Outbound calls: Failing consistently with the following error message:
• Call not showing up on Twilio.

Device +1678xxxxxxx dialed on (AnyLine@MY-Twilio_SipTrunk) has reached max amount of calls - Call(from "Tish"<sip:[email protected]>;tag=.tjE9F1cs6dUPIECzpSMTlsLtluwzAK- to +1678xxxxxxx)
Here’s what I’ve done so far:

• Followed Twilio’s official configuration guide for SIP trunking.
• Verified that the outbound route is configured to match 10 digits, prepend the "+" for E.164 format, and send it to Twilio.
• Ensured that the maximum simultaneous calls are set to 10, and no active calls are currently on the platform.

I’m wondering if this error could indicate a licensing issue with the free edition of 3CX or if there’s another underlying problem. I’ve successfully configured other PBX systems with Twilio, but this version of 3CX has been challenging.

Any insights or suggestions would be greatly appreciated.

Thanks in advance!

 

[YiannisH_3CX]

Hello @yawdcode

Please note that Twilio is not yet available on SMB as if you used a different template to add it it might not work.
Please be patient as Twilio will be available on SMB shortly when Update 5 arrives. Then you can try to add it and test if it works.