Phone delayed sound after answering a call

[jolouis]

(02-13-2019 06:08 PM)Jorge12 Wrote:  When one of the users picks up the call, you can hear a very annoying sound coming from all the other phones, as if the phone was closing the calls, as if it was a low trilling sound.

That's a new one. What PBX/system are you connecting your phones to? Do the other phones remain idle when this happens, or does it look like they are active/answering also?...

Also, why did you setup 8 accounts on each phone? Usually using 1 account with call waiting is enough, just assign 8 line buttons to the same account to juggle the calls. Unless you really want 8 different extensions on each phone?....