[App_rpt-users] Connection Errors

[David McGough]

Hi,

This is a known deficiency in the 1.4.x version of the IAX2 code,
unfortunately.  This problem shows up after a link becomes "stale" (idle
for an extended period of time). The simple work-around is to kerchunk the
link once before you start to talk on it, otherwise the first transmission
over the stale link will have choppy audio. After the first transmission, 
this issue temporarily resolves itself (until the link becomes stale 
again).

I'm not sure of a better work-around (anyone got any idea???)...Note this 
was a problem with IAX2 tunneling with Asterisk in general back in the 
1.4.x days, it is NOT specific to AllStar.

More recent versions of Asterisk greatly improve (maybe even fully 
resolve?) this issue....


73, David KB4FXC


On Sat, 20 Jun 2015, R. Wayne wrote:

> I have a new server that is being fed by Charter Communications. It is 
connected directly to the Internet (at the moment) and is kicking off 
errors Audible packet loss is heard although using PingPlotter, a 
networking application that graphically shows a combination of PING and 
TRACEROUTE. This is showing that I have a 15ms route to the Allstar. Here 
is what I am seeing by tailing the messages log file:
> 
> [root at ROTW-ARC asterisk]# tail -f messages 
> [Jun 20 01:58:14] WARNING[18794] chan_iax2.c: Resyncing the jb. last_delay -4, this delay -131072, threshold 1018, new offset -32
> [Jun 20 02:00:22] WARNING[18790] chan_iax2.c: Resyncing the jb. last_delay -3, this delay 65535, threshold 1018, new offset -65567
> [Jun 20 02:00:25] WARNING[18792] chan_iax2.c: Resyncing the jb. last_delay -1, this delay -65536, threshold 1020, new offset -31
> [Jun 20 02:01:38] WARNING[18794] chan_iax2.c: Resyncing the jb. last_delay 2, this delay 65536, threshold 1020, new offset -65567
> [Jun 20 02:02:36] WARNING[18789] chan_iax2.c: Resyncing the jb. last_delay 2, this delay -65534, threshold 1020, new offset -33
> [Jun 20 02:06:14] WARNING[18786] chan_iax2.c: Resyncing the jb. last_delay 0, this delay 131075, threshold 1020, new offset -131108
> [Jun 20 02:07:54] WARNING[18790] chan_iax2.c: Resyncing the jb. last_delay 6, this delay 65538, threshold 1020, new offset -196646
> [Jun 20 02:08:04] WARNING[18790] chan_iax2.c: Resyncing the jb. last_delay 1, this delay -196606, threshold 1020, new offset -40
> [Jun 20 02:11:50] WARNING[18789] chan_iax2.c: Resyncing the jb. last_delay 7, this delay 65539, threshold 1018, new offset -65579
> [Jun 20 02:12:26] WARNING[18788] chan_iax2.c: Resyncing the jb. last_delay -3, this delay -65533, threshold 1018, new offset -46
> [Jun 20 02:15:36] WARNING[18790] chan_iax2.c: Resyncing the jb. last_delay 5, this delay 65541, threshold 1020, new offset -65587
> [Jun 20 02:15:43] WARNING[18793] chan_iax2.c: Resyncing the jb. last_delay -4, this delay -65542, threshold 1020, new offset –45
> 
> I am new to this but have had help from an exexperienced user.