e1 question for Gateway

[iptuser55]

I have a router with a NM HD2 module for E1 and a VWIC2 giving me 4 x ports as well as a vwic3 card so total is 6x ports.The route came with lots of DSP`s  I`m moving some cards between different routers before sending it to a remote office. When I check he DSP calculator is shows I do not require any DSP`s . The router is only being used for E1 so there is no conf. transcoders etc configured.

Is the DSP calculator correct in that no DSP`s are required. Other threads give different views- some say no other state yes- Does the above need DSP`s if it is ony used for E1 circuits?

thanks

[paolo bevilacqua]

E1 circuit of what? Voice or data? The first needs DSP, the latter doesn't.

[iptuser55]

it`s voice but when I use the DSP calculator it states none . I`m attaching the screen shot of the dsp result