[asterisk-dev] IAX hardphone

Martin Harriss martin at Princeton.EDU
Thu Feb 10 14:22:13 CST 2011

Bill Shaw wrote:
> OK.  First,  my setup...
> - my development system - Win xp - Wireshark, Zoiper, TI's 
> Code Composer Studio
> - My PBX - CentOS 5.5, Asterisk 1.6
> - my hardphone - TI DSP running my code on the bare metal
> Zoiper calls extension 21 which is mapped in the dial plan through to my 
> hardphone.  Linux arps for my mac,  I reply with it.  * sends me a 
> 'new',  I reply with an 'accept'.  There is no response to the 
> 'accept'.  It just gets ignored and eventually * sends me another 
> 'new'.  There's got to be something wrong with my 'accept' but I just 
> can't see it.  Wireshark shows it as I expect.  No error messages,  
> nothing in the messages log,  it just gets dropped.
> Screen shot of the 'accept' in Wireshark:
> http://b.shaw.home.comcast.net/accept.jpg
> Can anyone see what I'm doing wrong?  Is the timestamp supposed to be my 
> timestamp (ms offset from 'new') or the timestamp in the 'new'?
> Thanks,
> Bill

This may be a silly question, but do you have any firewalling set up on 
the PBX that might prevent the packets from getting to Asterisk?  (They 
would still be seen by wireshark.)


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