Telnyx SMS Inbound isssue V20

[vectra]

After setup messaging profile for V20 I'm able to send out messages but not able to receive. Debug with Telnys showing delivery to webhook but on 3CX side nothing. I have Telnyx service on mulitply instances running v18 and no issues at all. Any ideas?

 

[IliasL_3CX]

Hello vectra,

Have you tried sending an SMS message from a new number and the same behavior was experienced. If the number that you sent an SMS from already has an active conversation in the phone system can you please verify that the message did not arrive on the existing conversation

 

[vectra]

I tried everything that I know. In the event log, I'm receiving something like:
"Unable to parse message from provider generic. Error: Unknown message received: { "data": { "event_type": "call.hangup", "id": "d5dba6f5-1a6a-4f17-974a-b10b6522c60d", "occurred_at": "2025-06-25T17:24:49.679739Z", "payload": { "call_control_id": "v3:BAjy8G411k_1OeXZBY-ZS2goHtd9wZndhQrWtCzMFkPzHq8dB5gn7w", "call_leg_id": "106e8ca4-51e9-11f0-8340-02420a0dda20", "call_quality_stats": { "inbound": { "jitter_max_variance": "15.84", "jitter_packet_count"

 

[Saky]

Is it using default templates, firewall checker to green and all the standard minimum requirements?

What is the Caller ID Number Matching setting? Perhaps lowering it in case the SMS is coming in slightly differently than expected?

 

[vectra]

Yes, firewall checking green, default template, caller id matching disabled (we try 3, 4, 10, 11 digits, any combination), and still not working.