Message Waiting Indicator (MWI)
If your SIP UA supports MWI with a “SUBSCRIBE” message, it will be activated by default. If there is a special button on your SIP UA to retrieve messages, assign a number (default is “8”) to retrieve voicemail messages. Some types of SIP UAs can automatically call the SIP URI that is specified in the Brekeke PBX NOTIFY packet (for MWI) to retrieve the message without assigning the number manually.
For those SIP UAs that do not send “SUBSCRIBE” messages for MWI, you can create a new phone type and set the [MWI (NOTIFY without SUBSCRIBE)] field as “on” and select this phone type from the PBX user extension [Phones] page where these SIP UAs are assigned. Then Brekeke PBX will send a voicemail notification even if there is no “SUBSCRIBE” message for the MWI sent from these SIP UAs.