[cisco-voip] 7970 running SCCP70.8-2-2SR2S resets on CCM 5.0.4.2000-1

[Anthony Kouloglou]

Hi, i have one CCM 5.0.4.2000-1  and there is an 7970 which sometimes 
resets several times a day!!
CCM is on a gigabit port of a WS-C2950T-24 and the phones on the same 
switch fast ethernet.
The phone also sometimes gets registered on the SRST which is on the 
same site. it gets unregistered at the same moment and gets registered 
back to the CCM.
It gets power seperately from a power cube (2950 has no POE)
Even if it gets registered on the SRST and back there is no reason for a 
full reset.
Because it has one 7914, it is very noticeable since all lights start 
blinking!

I took a trace from CCM service but nothing came out.
What are most common reasons for reset of a phone?
An other 7970 with 7914 also does the same. The customer has not noticed 
if other phones do the same thing but those 7970 do it for sure.
Could 7914 be the problem?
7914 has S00105000200  image.

Thanks
Anthony