NM card and DSP's for PRI & Conferencing

[krishnamurthy.mh]

Hi,

I am having 3745 Router. I want to terminate 2 PRI on this Router.And also i want to use conferencing.

I need to know which NM cards are required to connect 2 PRI's and for Conferencing. And also How many DSP's are required and what type of DSP required for 2 PRI's and for Conferencing?

[ivillegas]

You can use the DSP calculator tool in http://www.cisco.com/en/US/support/tsd_tools_by_category.html to find the number of DSPs required.