Hello.
It seems that there are quite a few people who want to use chan_ss7 in
the US.
I wrote this before - but the SS7 version used in the US is the ANSI
version which is quite different on many protocol levels from the
(European / rest of the world) ITU version.
Chan_ss7 is currently only implemented for the ITU version.
You can get it to work on a T1 (1.544 Mbit/s) trunk between two Asterisk
/ chan_ss7 machines but not with any other live equipment.
Not even a simple audio channel since the US uses uLaw audio compression
and chan_ss7 is hardcoded to aLaw compression.
It is quite a big undertaking to create an ANSI compatible version of
the current chan_ss7 and then add other protocol layers which are
used quite often in the US like SCCP etc.
Sorry folks - but chan_ss7 currently only works in a ITU / E1 enviroment.
Peter.
Tim Danner wrote:
I would like to use this in the US, my problem is that I don't have much time
to work independantly currently. My issue really is that I need to see the
different levels of SS7 be laid out like:
TCAP: local databse
SCCP: remote SS7 database
ISUP: Circuit info
MTP3: GateWay for services
In some Configuation file to interface with Asterisk.
-----Original Message-----
From: Tom Chandler [mailto:[EMAIL PROTECTED]
Sent: Thu 3/30/2006 11:50 AM
To: asterisk-ss7@lists.digium.com
Cc:
Subject: [asterisk-ss7] Chan_ss7.so
I have got chan_ss7.so (8.3) running on two Asterisk 1.2.4 servers back
to back with T1.5 connection between them.
I can complete calls in both directions between the two switches, so I believe that SS7 is working.
I would like to extend the package,however before I work on it, questions:
1. Is anyone using this package in the US, and if so, are the connections to a STP or to other switch.
2. First requirement is to expand the package to support two signaling links.
3. Add trunk cic (pic code ie, 0288 = AT&T), so it can be included in the IAM.
4. As anyone studied the dump file, when capturing MSU's. I am having trouble with the fields before the message type, and some other minor layout issues.
If anyone has answers to the above, I would appreciate, and would welcome anyone who wishes to work on these extensions to the package(Many more to add, but start small).
Thank You
Tom Chandler
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