I’m running Asterisk 20 on Ubuntu 24.04 as packaged. I have a Cisco SPA-504G.
I enabled message waiting on two of the four appearances by specifying Message Waiting = yes and mailbox ID matching my Asterisk mailbox ID.
I left myself a message, and the Message Waiting light went on. I deleted the message, but the light hasn’t turned off in about three days of no message. (Yes, I checked for another message :))
@jcolp In my SPA phone, each line can be programmed with a mailbox ID and a software switch to turn Message Waiting on or off. I have MW turned on and the mailbox number programmed.
That’s not the configuration for PJSIP. It is defined in there which mailboxes the endpoint has access to. If you don’t specify with a context (such as 115@default) then it has been shown to cause issues.