Hi I am using cisco 3640 with NM-HDV-E1 and a cisco 1751 V with VIC-2BRI NT-TE for voip. The voip is working well but I have problems with the DSPs on the NM-HDV. The DSP became BAD from idle or busy state after a few calls and I can established calls when I dial the number two or three times. When I do software reset to the dsp "test dsp device x x reset", the dsp become idle and I can established calls when I dial the number one time. If I do "test dsp device all all reset" , the 3640 router crash and reload. I am using 12.2.11T10 (Ip plus). I have allready tried other versions but ... Do you have any ideas ?