Specifications

TD 92326GB

2009-03-10 / Ver. E

Installation and Operation Manual

VoIP Gateway

11.4.6 Message Waiting Activation/Deactivation

The message waiting object (MWI) is used to store message waiting status for other

endpoints. The MWI status can be interrogated by these endpoints and is also sent actively

to the endpoint if the status changes. For H.323 endpoints H.450-7 messages are used for

this purpose. The endpoint can use this information to turn a message waiting LED on/off.

The MWI status can be set by two methods:

• Normal call to the MWI object with DTMF commands

• H.450-7 MWI-ACTIVATE/MWI-DEACTIVATE facilities

Configuration

DTMF Commands

Call Diversions can be configured for the object, but are of no real use. CFB or CFNR are

never executed. CFU is executed.

11.4.7 Call Diversions

A call diversion automatically diverts a call to a subscriber under certain circumstances. The

PBX Application supports three different types of call diversions:

• CFU (Call Forward Unconditional): With permanent diversions (unconditional), calls to

the subscriber for whom the diversion is configured are always diverted to a different

subscriber.

• CFB (Call Forward on Busy): Diversion if busy is used to divert calls for the subscriber for

whom the diversion has been configured to a different subscriber if there is already an

active call at the subscriber.

Announcement URL The URL for an announcement to be played when the MWI

object is called. This announcement can be used to give

explanation what DTMF commands are available. If no

Announcement is configured the built-in Music on Hold is

played.

Extern Name/Number The announcement can also be retrieved from another

endpoint. If a Name or Number is configured a call is sent to

this Name/Number when the MWI object is called. The

configured URL is sent as User User Information (UUI) with this

call, so that it can be used by the called endpoint to retrieve

the announcement.

The following DTMF commands are available when the MWI object is called:

*1*<dest> Set MWI for the endpoint <dest>

*2*<dest> Clear MWI for the endpoint <dest>

# Clear MWI for the calling endpoint.

Alternatively (for endpoints not being able to send '*' or '#'):

1<dest> Set MWI for the endpoint <dest>

2<dest> Clear MWI for the endpoint <dest>

3 Clear MWI for the calling endpoint.