DSP calculator - 3825 Voice Gateway

[ctd_77801]

I have numerous solutions for clients built out with a 3825 Voice Gateway using 4 - 2MFT VWIC cards to terminate 8 PRIs.

I was recently using the Cisco DSP calculator and tried building this to verify I had the propor number of DSP modules.

I received an error stating that this configuration was unsupported because I couldn't put enough DSPs on the motherboard for the number of voice calls I would process.  This was even with the G.711 codec.

So can I not terminate 8 PRI's on VWICs with the 3825 or am I using the calculator wrong?

I know when I add the Network Modules they have their own onboard DSPs, which I believe don't have any effect on the onboard need for DSPs.

Thanks

[skilambi]

I just tried this configuration and I have no issues. The output is 3 PVDM2-64 all on the mother board. I suggest you use this calculator

http://www.cisco.com/web/applicat/dsprecal/tdm_services.html

Of course ISR G2 give more bang for the buck with PVDM3 so definitely keep that in mind for the future

Thanks

Srini