Hello:
I have a problem with my cisco phone 3905.....one day i lost the registration of phone to the CUCM (version 11.0), i checked all the parameters of the phone in the CUCM, everything was ok. Then i started to check the phone itself, the ip address and the tftp were ok but i saw that the mac address of the phone changed to all zeros (00:00:00:00:00:00) i dont know how it happen ( the phone doesnt present any damage at all) .....i tried to do a factory reset to the phone multiple times with the same result....the mac address is still all zeros
Please I would like to know your opinion of why this problem happened (to take action about it and do not happen again) and if there is any solution for it....
Best Regards
