I have a Callcentric SIP line programmed to my SPA9000 with (1) SPA525G phone and (1) SPA962.
Everything is working fine but I cannot get the MWI to work on either phone using Callcentric voice mail.
I can retrieve messages, but the MWI light does not turn on when a message is left in the Callcentric mail box.
I had another SIP provider in the past that the MWI light would turn on every time a message was left in my mailbox with that SIP service.