[asterisk-dev] IAX Hardphone (again)

Kurt Lidl kurt.lidl at cello.com
Mon Dec 5 09:10:39 CST 2011

On 12/5/2011 10:07 AM, Kurt Lidl wrote:
> On 12/4/2011 11:04 AM, Andreas Sikkema wrote:
>> On 12/4/11 4:31 PM, Bill Shaw wrote:
>>> Yes,  I agree that is what it is behaving like,  but there is no
>>> firewall.  All the devices are on the same segment,  and call setup
>>> works in the other direction.  I can setup the legs and transfer voice
>>> packets bidirectionally just fine if the call originates from the other
>>> end.  It looks to me like my 'new' is being dropped by Asterisk.  I'm
>>> pretty sure I'm doing something wrong,  I just don't have the info I
>>> need to figure out what I'm doing wrong.
>> I'd build my own Asterisk and add debugging all over chan_iax.c, that's
>> probably the fastest way to find out what's going on.
> Are the protocol errors going up in the output of 'netstat -s'?  I've 
> seen cases where
> the generation of packets at a low level wasn't putting proper 
> checksums on
> the packets, so they all got received at the receiving end of the 
> connection.
Wow.  Not nearly enough coffee yet.

Make that "so they all got DROPPED at the receiving end of the connection".

> (IE -- the error is at the UDP level, long before Asterisk sees the 
> packets)
> -Kurt
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