Hi rcswebb,
I had a problem like yours : Asterisk -NAT - internet - NAT - 3CX phone Without modifiyng Astrisk conf I could start a call from the client but without hearing a sound. The solution for me was to force Asterisk to modify the outgoing udp packet to insert it's public ip and not the private IP behind the NAT . So in your sip.conf I modified : [general] *externip=YouEternalIP* NAT=Yes Hope that'll help :-) Message: 11 Date: Wed, 21 Sep 2011 10:52:08 +0100 From: Richard Webb <[email protected]> Subject: [asterisk-users] RTP stream when * and Xlite are both behind Nat devices. To: [email protected] Message-ID: <cam39q6ol6ytw4skhq0vmrouxx_4mkr7p6zo4shbdh8hvqod...@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" Hi, I have an Asterisk box behind a NAT address and also a Xlite 4 soft phone behind a different NAT network. Asterisk -> Nat -> Internet -> Nat -> Softphone. I can register my softphone to the asterisk box ok via SIP but the RTP stream from the asterisk box is addressed to the private non-routeable address of the softphone when I turn on rtp debuging. How can I configure the rtp stream to be sent to the public facing address of the softphone? Cheers,
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