[Asterisk-Users] Cisco 7940 no audio

[Scott Laird]

On Apr 16, 2004, at 10:04 AM, Craig Waddington wrote:

> When we receive or make a call to the outside – they can hear us, but 
> we cant hear them.

With SIP, missing audio is *usually* either a firewall or NAT issue.  
Check firewall logs and make sure that you aren't seeing packets being 
lost.  Do you have more then one 7940?  If so, can they call each 
other?

Also, when people call into your system, do they get audio from 
asterisk?  Does voicemail work?


Scott