We got a new TG100 Gateway, to perform outbound cell calls from monitoring System.
The Internal Pbx send a SIP "INVITE sip:email@example.com;user=phone SIP/2.0" to the TG100 Gateway, but the Gateway answers with "SIP/2.0 404 Not Found".
In the gateway debug logs i got the following Error Message:
"Call from 'voice' to extension '0781234567' rejected because extension not found."
The SIP Trunk is set up and working, the IP-to-Mobile rule is setup as well as "simple" rule (SIP inbound, GSM Outbound)
I can send a SMS properly and also a inbound call to a configured hotline number.
Why say TG100 "extension not found"?
Thank you very much for your help!!