[asterisk-users] Calls drop after 20 seconds

[Doug]

At 20:07 4/19/2010, Alejandro Recarey wrote:
 >Hi all,
 >
 >This issue is giving me a lot of grief with my customers. I have 5
 >asterisk servers running in production, each one with almost 70
 >simultaneous calls at peak hour. Most of my customers complain that
 >their calls drop after 20 seconds or so.

Many people have had this type of problem:

   http://www.Google.com/#q=Asterisk+20+seconds





 >
 >After running through my cdr's, I see that the number of 20 second
 >calls is MUCH larger than any other number. (see below)
 >
 >billsec        count(*)
 >1      924
 >2      841
 >3      725
 >4      812
 >5      779
 >6      681
 >7      644
 >8      630
 >9      613
 >10     515
 >11     522
 >12     516
 >13     557
 >14     527
 >15     507
 >16     457
 >17     456
 >18     467
 >19     424
 >20     1644
 >21     365
 >22     382
 >23     353
 >24     382
 >25     379
 >26     370
 >27     350
 >28     337
 >29     302
 >30     291
 >>30  lots
 >
 >
 >I am running Asterisk 1.6.1.14 on Debian Lenny. My servers are Dell
 >Power Edge 1950. I use canreinvite=no, and all of my servers are on
 >public IP's. All of my customers use Grandstream GXW4004 telephony
 >adapters.
 >
 >It is a hard issue to debug because it does not happen always. I will
 >try to obtain a sip trace from a dropped call, but until then, any
 >pointers, opinions or even guesses would be much appreciated!!
 >
 >Thanks in advance,
 >
 >Alex
 >
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