[cisco-voip] Transcoding Problems - 2821 router with PVDM2-48

Fedorov, Konstantin kfedor at amt.ru
Wed Apr 19 03:12:55 EDT 2006


Hi,

>> So do I need a transcoding resource on each side? IE, do I have to configure my GW at HQ to use local transcoding resources as well? This makes sense, but I asked this up front and didn't get a response, so I didn't figure it was necessary.

No, it is not necessary to have 2 transcoding resourses. 1 must be enough.
For what purposes you GW at HQ ?? If it just serve to transmit IP, it is invisible for Ip telephony. If it terminate call legs (POTS, VoIP) - yes 
It also must have knowledge about transcoding/confbridge resourses. 



-----------------------
Sincerely Yours,
Konstantin Fedorov

-----Original Message-----
From: Jason Evans [mailto:JEvans at glgroup.com] 
Sent: Wednesday, April 19, 2006 4:45 AM
To: Fedorov, Konstantin; Kevin Thorngren
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] Transcoding Problems - 2821 router with PVDM2-48


Hi, Jason.

So how I understand Conf bridge located in the HQ,  and belong to the DP which doesn't contain transcoding resources ?

>> Correct

If so, insert this transcoding to the this DP.

>> Ok, so I put the transcoder into the HQ DP but it's the same result. 

Because when you call from remote location to the HQ phone, you use transcoding but when you initiate a conference, you take another resource and this resource
must also have knowledge where take transcoding.

>> So do I need a transcoding resource on each side? IE, do I have to configure my GW at HQ to use local transcoding resources as well? This makes sense, but I asked this up front and didn't get a response, so I didn't figure it was necessary. 

Another way, configure dspfarm also like conf bridge.

>> This sounds like it might be easier. 

-----------------------
Sincerely Yours,
Konstantin Fedorov
________________________________________
From: Jason Evans [mailto:JEvans at glgroup.com] 
Sent: Tuesday, April 18, 2006 9:24 PM
To: Fedorov, Konstantin; Kevin Thorngren
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] Transcoding Problems - 2821 router with PVDM2-48

Hi Konstantin,

Right now I'm speaking g711 across the WAN so they use CCM resources. I know - its not an efficient or scalable solution, but our remote offices started small and are now growing rapidly, therefore its now imperative that I speak a lower bw codec to the WAN sites. 

jason

________________________________________
From: Fedorov, Konstantin [mailto:kfedor at amt.ru] 
Sent: Tuesday, April 18, 2006 12:11 PM
To: Jason Evans; Kevin Thorngren
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] Transcoding Problems - 2821 router with PVDM2-48

Hi,

What conference bridge do you use for remote phones ??

Does this conf bridge belong to the DP which also have transcoding resources ?

-----------------------
Sincerely Yours,
Konstantin Fedorov





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