Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Community Member

Hardware for Voip

Hi All,

In getting into this voip stuff, I have come to a point where i am slightly confused about the hardware. All of my sites will have 2800 series routers. What I do not understand is this whole DSP idea and how many do I need?! Can someone shed some light?

TIA,

R

1 ACCEPTED SOLUTION

Accepted Solutions
VIP Purple

Re: Hardware for Voip

Here's a couple of commands that will help.

show diag

show voice dsp

Brandon

4 REPLIES
VIP Purple

Re: Hardware for Voip

DSPs are used for media termination (PSTN connectivity), conferencing, and transcoding. The number you need depends on the number of PSTN calls, conferences, and transcoding sessions you need to support. The following link has some good information regarding the number of calls supported by different platforms/modules.

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/4_2/srnd4_2/uc4_2/42media.htm#wp1044922

A great resource for figuring out your DSP requirements is the DSP calculator, found here:

http://www.cisco.com/cgi-bin/Support/DSP/cisco_prodsel.pl

Hope this helps. If so, please rate the post.

Brandon

Community Member

Re: Hardware for Voip

Thank you for the links. These are very helpful. One more question. I know what I ordered on my routers, but we all know how that goes. is there a cli command for me to find out exactly how many dsp's i have ? or just more info?

VIP Purple

Re: Hardware for Voip

Here's a couple of commands that will help.

show diag

show voice dsp

Brandon

Community Member

Re: Hardware for Voip

awesome. the show diag did the trick.

thanks!!

122
Views
4
Helpful
4
Replies
CreatePlease to create content