Basically, the MWI-service (address type "Alert") is used for the signaling of new messages by indication of a signal at the user's telephone. This is normally the light up of a signal lamp or the indication of a message at the telephone display.
Tthe following protocol properties are required, depending on the protocol:
·DSS1 - MWI, ETSI ETS 300 650
·QSIG - mWIActivate and mWIDeactice, ECMA-242
·VoIP/SIP - Message Waiting Indication, RFC 3842
·VoIP/H.323 - H.450.7 "Message Waiting Indication supplementary service"
In detail, the feature is dependent on which PBX is used.
ISDN - Qsig und DSS1
Depending on the telephone system and its configuration, code numbers and/or prefixes must be defined, a user created.
These configurations must be stored in a configuration file in ixi-UMS Business.
Because the configuration depends very much on the required values, please contact ixi-UMS support for setup.