[cisco-voip] PVDMs! What are they good for?

[Keith Burns]

Perhaps look at convedia ? Media translation is a hairy business... You will
find that you need to stay on top of the user use cases to make sure a G729
caller tries to call a G711 call without hitting a translator.


On 6/9/06 3:50 PM, "Erik Erasmus (E)" <ErasmuE4 at telkom.co.za> wrote:

> Lelio
>  
> I am implementing a solution now where we used PVDMs as follows:
>  
> 1. to handle the E1 PRI lines ­ probably the equivalent of your T1s.
> 2. at remote branches to handle the ISDN basic rate line to the telco for
> local breakout 
>  
> and soon we will have to add DSPS ­ PVDMs to allow conferencing in branches
> and also to HQ across the IP cloud. As far as I know the Call Manager only
> supports G711 conferences so if a branch connects to HQ across an IP wan in a
> centralised CCM model via G729 you will need DSPs at HQ to mix the G729 and
> G711 calls in a conference
>  
> also see the DSP calculator on www.cisco.com <http://www.cisco.com/>  ­ as
> clear as MUD in some cases as to how many DSPs to buy ­ but once you playe
> with it online and get used to it it is actually very usefull. DSPs are
> expensive so it is important to plan and get it right first time
>  
>  
> erik erasmus
>  
> 
> 
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Lelio Fulgenzi
> Sent: 09 June 2006 09:23 PM
> To: cisco-voip at puck.nether.net
> Subject: [cisco-voip] PVDMs! What are they good for?
>  
> 
> Can anyone explain briefly what the PVDMs are used for on the routers? Do I
> need these if I am going to be running T1s, FXOs and SRST or do I need them
> just for conferencing?
> 
>  
> 
> ------------------------------------------------------------------------------
> --
> Lelio Fulgenzi, B.A.
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> "I can eat fifty eggs." "Nobody can eat fifty eggs."
> 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> This e-mail and its contents are subject to the Telkom SA Limited
> e-mail legal notice available at
> http://www.telkom.co.za/TelkomEMailLegalNotice.PDF
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> 
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip




Keith Burns | Director of Product Development | OneIPVoice | 720.891.4279


-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20060610/dd757daf/attachment.html