[cisco-voip] CUBE on 2821 Sip Trunking GigE not w/ PRI DSP Card?

[Nick Matthews]

Hi Gary,

For CUBE (IPIPGW), no DSPs are needed.

If you wanted to do hardware MTP or transcoding you would need DSPs
somewhere in your network, and they could be on the router if you
would like.

DSPs are needed to create or modify RTP packets.  In this case they
simply pass through the box.


-nick

On Mon, Jun 29, 2009 at 4:37 PM, Gary H<ciscovoiper at gmail.com> wrote:
> Does the Cisco 2821 need the DSP card in addition to proper IOS***  the if
> it is only doing SIP TRUNKING via ethernet interfaces (not pri)  with IP PBX
> such as Interactive Intelligence?
> ***  (c2800nm-adventerprisek9-mz.124-24.T1.bin
> or c2800nm-adventerprisek9_ivs-mz.124-24.T1.bin)
> -Gary
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