[Asterisk-Users] Transcoding on asterisk

[ADEGOKE ARUNA]

Hi all,
 
Thank you for the reply.
 
I didn't want to bother the list too much. However, after reading I discover
I don’t have a clear cut way of doing transcoding.
 
Can somebody direct me to where I can get document to get this transcoding
done.
 
My set up
 
>From [cisco (g729)] ----> [asterisk (sip channel(g729)within the same
asterisk) g711 to chan_ss7] -----> [pstn] 
 
And vice versa.
 
I will be glad if someone can throw more light on this for me.
 
Goksie
 
 
-----Original Message-----
From: asterisk-ss7-bounces at lists.digium.com
[mailto:asterisk-ss7-bounces at lists.digium.com] On Behalf Of Kai Militzer
Sent: Monday, March 27, 2006 3:19 PM
To: asterisk-ss7 at lists.digium.com
Subject: Re: [asterisk-ss7] g723 or g729 on ss7 link
 
Hi!
 
> Is it possible to set codecs on ss7 link?
 
No. E1s channels (which chan_ss7 uses as voice channels) can only use 
G711 alaw.
 
> Or receiving call with g723 or g729 and forward the call to pstn via the
ss7
> link.
 
You can do transcoding on the asterisk machine that you use as SS7 
Gateway. This means you get the calls delivered via SIP with G723 and 
send them out to SS7 with G711. Note that you need more processingpower 
for this then if you do no transcoding.
 
Best regards
Kai
 
-- 
Kai Militzer                 WESTEND GmbH  |  Internet-Business-Provider
Technik                      CISCO Systems Partner - Authorized Reseller
                              Lütticher Straße 10      Tel 0241/701333-14
km at westend.com               D-52064 Aachen              Fax 0241/911879
 
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