Hi,
It seems your configuration is correct .
1.Still you face the audio problem or not ?
2. Did you install libss7 while there was libpri installed
or a Fresh installation of the server .
3. in chan_dahdi.conf echocancel and echocancelwhenbridged=yes
=yes if you uncomment echocanceller=mg2,1-31
Rgds
Mesbah
On Wed, May 19, 2010 at 6:42 PM, Deepika Nijhawan <
deepika.chopra at oxygen8.com> wrote:
> Below is required info:
>
>
>
> 1. Which version of asterisk ,dahdi and libss7 you installed
>
> Asterisk 1.6.2.7
>
> DAHDI Version: 2.3.0 Echo Canceller:
>
> libss7 version: 1.0.2
>
>
>
> 2. OS Kernel Version
>
> Centos 5.4
>
>
>
> [root at asterisk4.uk:~]$ uname -r
>
> 2.6.18-164.15.1.el5PAE
>
>
>
> 3.IPTables and SELinux Status
>
> IPTables is fine. My softphone's ip range is allowed. This was working
> before with ISDN.
>
>
>
> [root at asterisk4.uk:~]$ cat /etc/sysconfig/selinux
>
> # This file controls the state of SELinux on the system.
>
> # SELINUX= can take one of these three values:
>
> # enforcing - SELinux security policy is enforced.
>
> # permissive - SELinux prints warnings instead of enforcing.
>
> # disabled - SELinux is fully disabled.
>
> SELINUX=disabled
>
> # SELINUXTYPE= type of policy in use. Possible values are:
>
> # targeted - Only targeted network daemons are protected.
>
> # strict - Full SELinux protection.
>
> SELINUXTYPE=targeted
>
>
>
> 4. Codec Status
>
> I am dialing from softphone -> asterisk -> telsis using alaw codec.
>
>
>
> 5.SIP.conf and extension.conf information
>
>
>
> sip.conf:
>
> [448714349151]
>
> type=friend
>
> username=448714349151
>
> secret=deepika
>
> disallow=all
>
> allow=alaw
>
> nat=yes
>
> host=dynamic
>
> canreinvite=no
>
> context=from-pstn
>
> call-limit=2
>
>
>
> extensions.conf:
>
> [from-pstn]
>
> exten => _1999001X.,1,Dial(DAHDI/g0/${EXTEN})
>
>
>
> 6.
>
> Even if I enable below line in system.conf?
>
> #echocanceller=mg2,1-15,17-31
>
> I am getting below error:
>
> [May 19 12:55:59] WARNING[6187]: chan_dahdi.c:2683 dahdi_enable_ec: Unable
> to enable echo cancellation on channel 1 (No such device)
>
>
>
>
>
>
>
>
>
> ---
>
>
>
> Kind Regards,
>
>
>
> *Deepika Nijhawan*
>
> *VoIP Engineer*
>
> * *
>
> *Oxygen8* Communications
>
> *T:* +44(0) 871 434 9151
>
> +44(0) 121 620 9151
>
> *Email:* deepika.nijhawan at oxygen8.com
>
> *Skype:* deepika-nijhawan
>
> *W:* www.oxygen8.com
>
>
>
>
>
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>
>
>
>
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