[asterisk-bugs] [Asterisk 0010824]: Poor audio quality and sometimes disconnection after hangup

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=10824 
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Reported By:                swatchy
Assigned To:                dbowerman
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Project:                    Asterisk
Issue ID:                   10824
Category:                   Addons/chan_mobile
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     ready for testing
Asterisk Version:            SVN 
SVN Branch (only for SVN checkouts, not tarball releases): N/A  
SVN Revision (number only!): 83834 
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             09-26-2007 03:18 CDT
Last Modified:              12-27-2007 03:50 CST
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Summary:                    Poor audio quality and sometimes disconnection after
hangup
Description: 
Some information about my system:
OS Ubuntu 7.04
Bluez: 3.9-0ubuntu1
Bluetooth: Internal Bluetooth from Acer C110 Notebook
Asterisk: SVN-trunk-r83834
chan_mobile: Revision 451
Cellphone: Nokia 6230i

These things are working:
1. Notebook and Nokia are paired
2. Outgoing call from iax phone -> asterisk -> pstn works
3. Incoming call not tested
4. Incoming/outgoing SMS are working

The problem:
At the time the pstn phone picks up the call from the cellphone, you can
hear the person sitting behind the iax softphone very quiet and with a
really poor audio quality. It sounds like a robot is speaking to you. 

My tries to solve the problem:
In mobile.conf:
forcemaster set to no and yes
alignmentdetection set to no and yes
Set the iax softphone to gsm and ulaw

Another problem:
Sometimes after hangup the call the connection between asterisk and the
cellphone breaks up. I don't know why? See this for more information:






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---------------------------------------------------------------------- 
 phokz - 12-27-07 03:50  
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Hello,
I can confirm that removing two lines suggested by latysheff resolves the
disconnect after hangup issue in my test setup:

asterisk stable 1.4.16.2
usb bluetooth stick ID 0a12:0001 Cambridge Silicon Radio, Ltd Bt Dongle
(HCI mode)
Nokia 6230i
grandstream sip shone
I had to make some patching to make latest chan_mobile (499) compile with
stable asterisk.

I can also confirm that sound quality is good, at least on outgoing
calls.
When I try incoming calls with this setup, I get Bluetooth Device nokia
has disconnected, reason (104).

I'll try to retest this with asterisk trunk too. 

Issue History 
Date Modified   Username       Field                    Change               
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12-27-07 03:50  phokz          Note Added: 0076001                          
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