SS7 link setup between Telsis and Asterisk

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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:  <http://www.oxygen8.com/> www.oxygen8.com                    

 

 

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