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Summary:ASTERISK-01539: DISA Dialtone is somewhat broken.
Reporter:mustdie (mustdie)Labels:
Date Opened:2004-05-04 14:18:51Date Closed:2004-09-25 02:17:30
Priority:MinorRegression?No
Status:Closed/CompleteComponents:Core/General
Versions:Frequency of
Occurrence
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Issues:
Environment:Attachments:
Description:Produced dial tone of DISA application contains some kind of ticking and noises. I've tried 3 different servers with pretty recent installation of Head and Stable with the same result.
Comments:By: Brian West (bkw918) 2004-05-04 15:08:49

No ticking here... he's going to try zttest :)
By: mochouinard (mochouinard) 2004-05-04 15:23:29

I got same problem over VoIP (IAX2/ULAW), I have that problem since december (since I started *).  I dont have it using the new cool TDM400 FXO module thought.

I'll check tonight with SIP and ulaw and SIP g729
By: hwstar (hwstar) 2004-05-04 15:35:06

If you are using IAX2 or another VOIP protocol, that ticking might be caused by packets being dropped in the upstream direction. With asymetrical broadband connections, this can be an issue.  What's the access port being used to access DISA: VOIP or straight analog? I've never seen this happen on my analog DISA port,
but it does happen on my DID spread coming in over IAX2 through a cable modem.
By: mustdie (mustdie) 2004-05-04 15:52:50

Opened pseudo zap interface, measuring accuracy...
100.000000% 100.000000% .......
--- Results after 19 passes ---
Best: 100.000000 -- Worst: 100.000000

DISA dial tone just dies over SIP/ULAW in about 5-7 seconds with very bad clickings and tickings... When i have PSTN --> IAX2 --> IAX2 --> DISA...these clickings just too just too annoying. (IAX2 --> IAX2 segment is on LAN). And i have 0 packet loss.
By: mochouinard (mochouinard) 2004-05-04 15:55:39

My link is a 100mbits full duplex link to the internet,
ping are very stable and no packet lost, cpu usage is very limited :
--- switch-1.nufone.net ping statistics ---
31 packets transmitted, 31 received, 0% packet loss, time 30299ms
rtt min/avg/max/mdev = 21.574/22.291/23.669/0.482 ms

traceroute to switch-1.nufone.net (66.225.202.72), 30 hops max, 38 byte packets
1  64.235.196.161 (64.235.196.161)  1.147 ms  1.099 ms  0.906 ms
2  gw233-mtl.194.dserv.ca (64.235.194.233)  0.414 ms  0.391 ms  0.311 ms
3  metrooptic-gw.peer1.net (216.187.90.137)  1.341 ms  1.759 ms  1.447 ms
4  Gig1-0.mtl-core-a.peer1.net (216.187.90.5)  1.631 ms  1.725 ms  3.785 ms
5  OC48POS4-0.mtl-core-b.peer1.net (216.187.90.46)  2.071 ms  1.813 ms  2.159 ms
6  OC48POS2-0.tor-core-b.peer1.net (216.187.68.94)  9.977 ms  9.645 ms  10.016 ms
7  OC48POS1-0.tor-core-a.peer1.net (216.187.68.229)  10.019 ms  9.653 ms  9.965 ms
8  chi-dis-1.ne.peer1.net (216.187.68.58)  21.363 ms  21.285 ms  21.614 ms
9  ge1-5.b1.chg.servercentral.net (216.187.68.170)  21.856 ms  21.589 ms  22.034 ms
10  ge3-3.c1.ord.scnet.net (64.202.111.153)  21.833 ms  22.471 ms  22.021 ms
11  gw-chi-1.nufone.net (66.225.202.72)  22.630 ms  22.641 ms  22.492 ms

zttest result is :
--- Results after 34 passes ---
Best: 100.000000 -- Worst: 99.987793

ztspeed result is :
Count: 218357

PC is a Pentium 4 1.5ghz with 1.5gig of ram
By: mustdie (mustdie) 2004-05-04 16:24:04

Here is just an observation. After execution of DISA application, jitter on Cisco 7960 jumps to 2000-4000ms and keeps increasing indefinitely. (SIP/ULAW). No packet loss between Cisco 7960 and asterisk.
By: mustdie (mustdie) 2004-05-04 17:43:56

Lastest version of Zaptel and HEAD seems to have solved this issue. Thank you for all your help.
By: Mark Spencer (markster) 2004-05-04 17:59:36

Fixed in CVS