I have a very peculiar problem with a 403 release 3.2.57. For some time now, 2 phones while speaking with outside numbers sometimes disconnect and show disconnected on the screen. I have replaced all the cabling between the phones and the system, I replaced the phones themselves, I upgraded the system from release 3.2.54 to 3.2.57, I used different wall sockets and even used different ports on the system. Nothing works and only these 2 telephones have the problem and it doesn't happen all the time. Unfortunately the client is very busy, so it's almost impossible to use Sysmonitor. The trunks are used by all. I am thinking to replace their system with a spare we have and see what happens, but before I do that I want to know if there is anything else I could check.
Thanks
Thanks