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Hi Asterisk users
I have a problem with a configuration as shown in the diagram…
+-----------------+ | PBX/STUN server | +-----------------+ | | | +-----------------+ | FIREWALL & NAT | +-----------------+ | | | +-----------------+ | PUBLIC INTERNET | +-----------------+ | | | +-----------------+ | FIREWALL & NAT | +-----------------+ | | | +-----------------+ | SIP CLIENT | +-----------------+
Chanel configuration as follows in sip.conf
[2103] type=friend context=limited username=2103 secret=XXXXXXXXXX callerid="Hayetaipaq" <2103> calleridnum=2103 host=dynamic nat=yes disallow=all allow=gsm allow=ulaw allow=alaw mailbox=2103
It happens to work quite well while the client connects directly to a public Ip addressing schema, but when the client is behind a second NAT I only have one way voice either outgoing or incoming but never both at the same time.
Does an STUN server will solve the problem ??? Is it possible to use a third party STUN server outside the PBX network?
Thanks in advance asterisk users! |
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