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DSP calculator - 3825 Voice Gateway

Question asked by ctd_77801 on Feb 5, 2010
Latest reply on Feb 6, 2010 by Srinivasan Kilambi

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.