I have seen a thread here and a few elsewhere regarding clearing the callers list password on an M3903 but I have not seen a definitive answer (at least one that works on an 11c running 25.40b). The standard response is LD 32, CPWD TN and that resets the password to 12345678. The problem is that this does not work on our system/phone. I have seen a suggestion to set the key to NUL but this of course only takes it out of mind and does not provide the desired functionality. Is there anyone who can shed a little light on this dilemma? By the way the F/W in the 3903 is version 8.0. By the way we have another 3903 at the same version and it has never wanted a pw.