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Summary:ASTERISK-05231: 1.2.0beta1 ISDN strong&weird noise
Reporter:alterys (alterys)Labels:
Date Opened:2005-10-04 07:00:49Date Closed:2005-10-04 19:24:49
Priority:MajorRegression?No
Status:Closed/CompleteComponents:Core/General
Versions:Frequency of
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Description:We just installed the 1.2b1 version to test it and have problems with modem channels.

Until today we succesfully ran a 1.0.7-stable with one BRI ISDN Card (Asuscom, Hisax type 35) as a common office PBX, in Belgium, with tone dialing.

With the same hardware, the 1.2b1 has noise problem:
* ISDN party is ok, but the other party (SIP/IAX) receives loud noise;
* ISDN party can hear other party but with a long delay (about 1 sec)
* When only using asterisk applications such as Wait, Background, nothing was remarked, as we do not have another "external" channel
* We also tried with another Hisax card, type 11 (Eicon DIVA) but the problem remains.

****** ADDITIONAL INFORMATION ******

MODEM.conf
;
; isdn4linux
;
; Configuration file
;
[interfaces]
context=demo
driver=i4l      ; isdn4linux - an alternative to i4l is to use chan_capi
stripmsd=0
dialtype=tone
mode=immediate

group=1         ; group=1,2,3,9-12
msn=87740306
incomingmsn=87740307
device => /dev/ttyI0
device => /dev/ttyI1
Comments:By: Serge Vecher (serge-v) 2005-10-04 08:43:57

alterys, please try chan_misdn (http://bugs.digium.com/view.php?id=4077) -- it is getting much more development.

By: Kevin P. Fleming (kpfleming) 2005-10-04 19:24:38

ISDN4Linux is an unsupported (deprecated) channel technology in Asterisk 1.2.