Telnyx 403 Error

[greatchoice]

Anyone get a 403 errors when attempting outbound? It worked a few times and that is it. I use the templated SIP

03/10/2021 7:32:37 AM - Leg L:14.2[Line:10001>>+18005250280] is terminated: Cause: 403 Please use siphv.telnyx.com D43/INVITE from 192.76.120.10:5060

It says to use another IP address however that will not register the trunk

 

[NickD_3CX]

Hi there,

From what I can see siphv is a separate SIP Trunk product that Telnyx has. What we have tested is the Full Featured voice product they have.

Siphv according to Telnyx is a "High-Volume/Short-Duration" product that has a limited featureset.

We can guarantee that this will work as intended with the Telnyx template in the PBX, but you could try setting the registrar of you SIP Trunk to siphv.telnyx.com as the Log entry says.

Again, I'm not sure if this alone will work, because from what I see this special product also doesn't support SIP Registrations, so you would also have to switch the Authentication to "Not Required".

Try these changes, if it works OK, if not either switch to the Fully Featured voice product they offer, or ask Telnyx for assistance.