TELES configuration

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TELES has some weirdness with SIP.

It reports that it sends calls from port 5060 but actually sends calls from a different port. In our case, it was 1831:

<--- SIP read from --->
ACK sip:393932891230@ SIP/2.0
Via: SIP/2.0/UDP;branch=z9hG4bK00E0F51004B48887365D000000C5
Route: <sip:>
From: <sip:4369910439372@>;tag=00E0F51004B48887365D00001AEC
To: <sip:393932891230@>;tag=as7fcd3c74
Call-ID: 00E0F51004B48887365D000016D6@
CSeq: 42891 ACK
Max-Forwards: 70

Asterisk sees it as from 5060:

============== SIPCHANINFO ===============
Peer IP:
Source IP:
From: sip:390331603040@
Contact: sip:
Useragent: TELES.iSWITCH
T38Passthrough: 0

To accept calls from such a device, you need to set the correct port for it in MOR.

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Try M2