Nec SV8100 - Asterisk Sip Trunk

Asterisk Asterisk SIP
1

Hi, i’m having trouble with the sip trunk of these 2 .
I can call from the asterisk to NEC extensions, but when i try to call from a NEC extensions to anyone from asterisk i get invite, i send the trying and next thing i get is a CANCEL from NEC.
Anyone had this or a similar problem ?

I’ve seen some topics about the SV8100 but with old Asterisk versions and totally diferent problems

Here is the debug https://docs.google.com/document/d/1UGqKOYtuGmmi3E0INfDkEfM7gLlyfOE2NEDI0B2jTu4/edit?usp=sharing

2

The only thing in the Asterisk response to which it would be at all reasonable to object is the session timer request.

3

Can you explain ? I’m not too good with these

4

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