[Asterisk-Users] internal & external SIP

[Ian D. Wlloughby]

I am guessing the problem is that your internal clients can see the
external SIP clients but not the other way round. The clients have to be
able to make a physical connection to each other. You are not using any
NAT capabilities I guess as your internal clients have their own network
to access the server on. If you set nat on in sip.conf for one of your
internal clients and get it to register on the public network, does this
work?


R's
Ian


-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Jon Lawrence
Sent: 08 July 2004 21:00
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] internal & external SIP

Hi all,
I've got a problem with external sip clients.
My * box has 2 nics, one to my internal network and one on a public IP.
There are external sip clients (on public IPs) and internal clients on
the internal nic.
both clients can register fine.
I can phone external clients from the internal clients and the
connection works perfectly.
But if an external client phones an internal one, the internal phone
rings, but when the phone is picked up the external call disappears.
Both internal and external have canreinvite=no

Can anyone give me any ideas where to start looking into this.

Regards,
Jon

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