Here is a strange problem?? Help Needed!

[Speedy2k]

Ok here is the problem, One of my client have a random noise problem between Asterisk and their 57i phone, in fact the problem is for shure coming from asterisk, i have logged all packet of a call that as done the problem. Here are the pcap file and the wav file of those call, you can see in those file that the call between voipms-asterisk is ok, both way they sound is ok, but on the asterisk-57i file, you can hear the strange noise only the 57i phone ear it, the client at the other end is just fine.

Here are the files:
http://dl.dropbox.com/u/9698491/bugstp/asterisk-57i.pcap
http://dl.dropbox.com/u/9698491/bugstp/asterisk-57i.wav
http://dl.dropbox.com/u/9698491/bugstp/voipms-asterisk.pcap
http://dl.dropbox.com/u/9698491/bugstp/voipms-asterisk.wav

I really need some help on this one.
Here is the output of the status

Status Version 1.2.9 released on Date 042310
********************************************************************
*            PBX in a Flash Version  Daemon Status                 *
*                      Running Asterisk 1.4                        *
********************************************************************
* Asterisk  * ONLINE  * Dahdi     * ONLINE  * MySQL      * ONLINE  *
* SSH       * ONLINE  * Apache    * ONLINE  * Iptables   * ONLINE  *
* Fail2ban  * OFFLINE * IP Connect* ONLINE  * Ip6tables  * ONLINE  *
* BlueTooth * ONLINE  * Hidd      * ONLINE  * NTPD       * ONLINE  *
* Sendmail  * ONLINE  * Samba     * OFFLINE * Webmin     * ONLINE  *
* Ethernet0 * ONLINE  * Ethernet1 * ONLINE  * Wlan0      *   N/A   *
********************************************************************
* Running Asterisk Version : Asterisk 1.4.42
* Asterisk Source Version  : 1.4.42
* Dahdi Source Version     : 2.5.0.2+2.5.0.2
* Libpri Source Version    : 1.4.12
* Addons Source Version    : 1.4.13
********************************************************************
00020001pbx on 10.10.0.10 - eth0
CentOS release 5.4 (Final) :32 Bit Kernel: 2.6.18-164.6.1.el5

If someone can point me in a direction, i really don't know where to start!! I have tried upgrading Asterisk to the latest without success!!

 

[jbh]

Hi,

I see that at packet 344 onthe Wireshark trace to the phone you start getting DTMF six which appears to be sent from the server to the phone. No idea why...

 

[Dadburns]

This sounds like Aastra problem we faced recently. The phone reads some incoming voice pitches as DTMF and converts them to that tone. Only the person on the Aastra phone hears it, the caller doesn't.
Make sure the phones are on the latest firmware and add:
suppress incoming dtmf playback:1
To the aastra.cfg

It worked for us, good luck!

 

[Speedy2k]

This sounds like Aastra problem we faced recently. The phone reads some incoming voice pitches as DTMF and converts them to that tone. Only the person on the Aastra phone hears it, the caller doesn't.
Make sure the phones are on the latest firmware and add:
suppress incoming dtmf playback:1
To the aastra.cfg

It worked for us, good luck!

Yea but in the log, those DTMF are coming from the Asterisk.

It is coming from my asterisk IP to the Phone IP, so asterisk is sending DTMF to the phone ? Or am i undestanding it wrong ?

The Aastra firmware is this one:
Aastra 57i/2.6.0.2019

 

[Speedy2k]

Before upgrading to the latest firmware read this and then this. In a production environment, I would not want to go beyond firmware 2.6.0.2019.

Yea i know that!!! I am on the latest stable firmware avaible. And in fact this seems to be the only PBX i got with this problem, and it does this problem if the call from VOIP or from PSTN in fact anywhere the call come from, it seems that it can does that but really random behaviour.

 

[Dadburns]

Hmmm, well I guess we got lucky. We only use limited scripting and those are the ones Ward put out on Nerdvittles; DND, Call FWD, Directory. We put out firmware; 3.2.2.56 recently and it seemed to solve our problems rather than create new ones. SpeedyK might try it on a test phone (and be prepared to roll-back), we did it that way first.

 

[jbh]

Yea but in the log, those DTMF are coming from the Asterisk.

It is coming from my asterisk IP to the Phone IP, so asterisk is sending DTMF to the phone ? Or am i undestanding it wrong ?

Could Asterisk be mistakenly interpreting some frequencies incoming from the trunk as DTMF tones and then passing those on to the phone? What happens if you establish a call and deliberately send DTMF 6 from the other end?

 

[Speedy2k]

They just play correctly! Nothing strange happen!

 

[jbh]

I haven't encountered this myself - so I'm afraid I don't have the solution up my sleeve. However googling around I see several mentions of erroneous triggering of 'detection' of DTMF tones on trunks, particularly with a female voice.

 

[Stewart]

Most of the issues revolve around the scripts so if you aren't having problems, Great!

 

[Speedy2k]

have disabled the dtmf playback in the Aasrta phone and the client sendme a e-mail today telling me it as done it again. I'm gona look at the trace tonight to see what as happend this time. But what do you think of upgrading Asterisk to 1.8 on a live system? Is there anything i should know before proceding ? it is not possible fot this system to get reinstalled completely.

 

[briankelly63]

use software to create an image of the drive if you can do that so you can go backward

 

[tbrummell]

have disabled the dtmf playback in the Aasrta phone and the client sendme a e-mail today telling me it as done it again. I'm gona look at the trace tonight to see what as happend this time. But what do you think of upgrading Asterisk to 1.8 on a live system? Is there anything i should know before proceding ? it is not possible fot this system to get reinstalled completely.

There is no upgrade path from 1.4 to 1.8. To get 1.8, you will be doing a complete reinstall.

 

[Speedy2k]

I can manually download and recompile Asterisk on this box. I don't need to use the script.

 

[darmock]

Speedy2k

You are running an old deprecated version of PIAF I am afraid. Hand updating Asterisk can break things at times and ancilary programs developed for 1.4 may not work on 1.8

You may find that the extra time spent in hand compiling asterisk would be better spent scrubbing and reinstalling asterisk 1.8

There are NO patches anymore nor is any developement being done on that version of PIAF anymore. (1.4) Plus if you hand update asterisk source you will have no access to any updates thru our channels.

Have at it though always interested in the results of experiments. 8^)

The same problems are going to occur between PIAF 1.7.5.X and PIAF 2.0.6.X I am afraid.

First there is no nor will there ever be an upgrade path between Centos 5.X and Centos 6.X. This is an upstream decision as opposed to something PIAF has control over.

Second ALL of the ancillary programs for PIAF 2.0.6.X had to be rewritten in either 32 or 64 bit mode so none of them are backwards compatible with PIAF 1.7.5.X

Third.... yadda yadda yadda. I rant at times.

So I would recommend a new install of PIAF 17.5.7.X using the latest ISO which is 1.7.5.7.2. The 2.0.6.X version will only run with the latest released ISO in the 2.0.6.x series.

Dont wait for PIAF 2.0.6.X as it is still in alpha (soon to be beta)

Tom