[Asterisk-Users] Cisco 7940 no audio

[Brian Cuthie]

Craig Waddington wrote:

>I will try disallow=all, thanks, Nat is off. Sip.conf below.
>
>If I call from my mobile to the isdn number, the Cisco phone rings, I pick up, they can hear me, I can not hear them, if I transfer it to the Sipura I get AUDIO!! .... 
>
>It is also happening over IAX with the Cisco phones.
>
>I followed a lot of the examples on loligo.com, which were a great help, but this is so hard to troubleshoot as I cannot see any errors in debug, asterisk thinks a good call is in progress.
>
>Anything internal is perfect. The CAPI works fine. Its just the audio from the other end.
>
>Every now and then I can hear a quick bit of sound. One in 20 calls may work.
>
>[general]
>port=5060			; Port to bind to
>bindaddr=0.0.0.0		; Address to bind to
>allow=ulaw
>allow=alaw
>tos=lowdelay
>
>
>[20]
>type=friend
>username=20
>secret=20
>canreinvite=no
>host=dynamic
>mailbox=20
>callerid="Cisco Phone" <20>
>accountcode=20
>qualify=yes
>context=sip
>
>Thanks.
>
>
>
>
>
>-----Original Message-----
>From: asterisk-users-admin at lists.digium.com [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Brian Cuthie
>Sent: 16 April 2004 18:37
>To: asterisk-users at lists.digium.com
>Subject: Re: [Asterisk-Users] Cisco 7940 no audio
>
>Craig Waddington wrote:
>
>  
>
>>When we receive or make a call to the outside - they can hear us, but 
>>we cant hear them.
>>
>>It may work 1 of 20 times. I have set canreinvite=no and looked at 
>>many sites but cannot track down this problem.
>>
>>Current setup:
>>
>>Isdn Eicon Diva card / Capi -> Asterisk à network.
>>
>>I have tried adjusting the RTP port in rtp.conf with the Cisco default 
>>ports, no luck.
>>
>>Anyone had this problem, and has a fix?
>>
>>Thanks.
>>
>>    
>>
>Make sure you don't have the Cisco phone set to do NAT.
>
>-brian
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Just to be clear, you need at least the following (or at least I did):

sip.conf:

nat=yes
reinvite=no

SIPDefault.conf  (in your tftp directory)

nat_enable="0"

-brian