Dear all,
I'm trying to receive a call from a VoIP provider to my Asterisk which
is behind a router, with a port forwarding (5060).
This configuration has already been validated with another VoIP
provider, but in the present case, not.
I suppose (thanks to the sip trace) my asterisk is not able to answer a
call which need Prack.
My asterisk answer :
'
SIP/2.0 420 Bad extension
...
Unsupported: 100rel
'
Any idea ? It is because I use port forwarding ? Should i have to open
other port ?
Thanks
--
Jean-Baptiste Bellet
Ingénieur Développement
Lucyde SAS
Prologue 1 - La Pyrénéenne BP 27201 LABEGE cedex
+33 (0)5 34 31 86 36
http://www.lucyde.com
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