V3.1 is update to support new “voice mail” features.  Messages waiting indicator (MWI) is supported in this new version.

By default, MSS will not store voice messages and just sent them to local users email address. With the new features, MSS can do

(1) Store voice messages in the server, and indicate the SIP phones how many voice messages are stored in the server. If the SIP phones can support MWI too,  they will display the number of voice messages.

(2) Users can dial into MSS to check their voice messages.

Please refer to online service document which have been updated with a demo configuration of Xlite and MSS.

http://www.myvoipapp.com/docs/mss_services/voice_mail/index.html