Unable to retrieve PJSIP transport 'udp,tcp,ws,wss'

[yannickg (Yannick Gagne)]

Hi,

I have some local extensions and outbound calling working with a Twilio SIP Trunk, I also configured the inbound route but I always get this error when calling in.

[2018-07-14 11:45:59] ERROR[12401]: res_pjsip.c:3115 ast_sip_set_tpselector_from_transport_name: Unable to retrieve PJSIP transport 'udp,tcp,ws,wss’

Anybody has a clue?

I can post logs if anyone has time to look into this.

Thanks

[avayax (Johann Zurner)]

Do you have allow guests enabled for pjsip and this in pjsip.endpoint.conf?

[anonymous]
type=endpoint
context=from-sip-external
allow=all
transport=udp,tcp,ws,wss

[yannickg (Yannick Gagne)]

I do have this ;

[anonymous]
type=endpoint
context=from-sip-external
allow=all
transport=udp,tcp,ws,wss

But I’m not sure how to set Allow Guests…is it here?

[yannickg (Yannick Gagne)]

This is seems to be related, am I right?

https://issues.freepbx.org/browse/FREEPBX-17841

[avayax (Johann Zurner)]

Yes, that’s a bug report on the invalid transport.

However, do you need allow guests enabled at all?

[yannickg (Yannick Gagne)]

I’m not 100% sure but I think so.

The Twilio info about trunking is not too detailed…

[yannickg (Yannick Gagne)]

Just to not mislead anyone reading this.

Twilio was connecting on port 5060, which is assigned to pjsip and my trunk was a chan_sip trunk. So I have some cleanup to do and need to understand the stuff a bit better before continuing.

I did swap the ports for chan_sip and pjsip in SIP Settings and was able to get some incoming calls.

So, like I said, I’ll go read some more stuff and report back.

Thanks for all the answers!

[chassv]

I’m more or less in the same boat. Twilio. First trunk was a chan_sip, but now I want to try PJSIP.

The documentation of Asterisk Sip Settings stops before the Chan or PJ tabs…

Do we have a resource where users share provider config info and experience. Flowroute has even less details now than Twilio for freepbx. Configurator? I could not find it. Next to this forum which is best for freePBX?

I hope you report back soon!

[yannickg (Yannick Gagne)]

What I ended up doing is this. By default FreePBX uses port 5060 for pjsip and 5160 for chan_sip so I went in the settings and switched the ports to make chan_sip use 5060.

I then configured my Twilio trunk and everything went well.

I used those Twilio YouTube clips;

The tricky part to not forget is that Twilio uses multiple IPs and you must configure the trunk for each IPs. IPs are listed in your Twilio account. https://www.twilio.com/console/sip-trunking/your-network

I found this guide: https://www.twilio.com/docs/documents/53/TwilioElasticSIPTrunking-FreePBX-Configuration-Guide-Version1-0-FINAL-06122018.pdf
But it says pjsip in the guide, so maybe Twilio support pjsip also…maybe try to create your trunk before switching the ports.

I hope this helps!