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Squidly
Asked: 2011-05-06 04:56:31 +0800 CST

Asterisk Sip trunk though a PIX 501 firewall

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I'm using an asterisk VOIP server, and I'm able to make called though with my SIP client. The problem I get is one-way voice. I can hear the incoming voice but the caller can not hear me. I have no problems when using the X-Lite3 windows SIP client. I VOIP provider is broadvoice.

Could it be something in the firewall rules that I need to fix?

firewall cisco-pix asterisk voip

2 Answers

  1. Best Answer

    do you have nat? try to set canreinvite=no and nat=yes in sip.conf please give me some sip.conf youve got

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  2. There are several options you need to set correctly to make it work: localnet, nat, externip or externhost, qualify, canreinvite, etc.

    See here: http://www.linuxjournal.com/article/9399

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