Avaya BCM 2.0 Programming Guide de l'utilisateur télécharger pdf (Page 249)

Configuring Digital Private Network Signalling System1 249

P0911588 Issue 01 Enterprise Edge 2.0 Programming Operations Guide

Message Waiting Indication

Message Waiting Indication (MWI) is a DPNSS 1 feature for Enterprise Edge Call

Services. Messages are received at a centralised location (a telephone set you pre-

determine), where they are processed and forwarded to the target set. This

centralisation relieves the network processing load, making the system more

efficient. MWI provides users with the ability to scroll through, erase and reply to

messages.

When there are messages to be retrieved, Message for you is displayed at the set.

Once all the messages are retrieved by the user, a Message Waiting Cancellation

(MWC) is sent from the call centre, and the user set no longer displays MWI.

MWI also allows the user to reply or call back to the message centre. Theprocedure

for retrieving messages is described in the Enterprise Edge Feature Programming

Telephone Guide.

This feature is only supported on Enterprise Edge target lines.

Restrictions by set type

• Message Waiting Indication is indicated differently on different types of sets:

• M7000—Ihe associated LED will flash.

• ATA—Is not supported.

• ISDN—Is not supported.

• Portables—Is not supported.

• DNA—Is not supported.

Setting Message Waiting Indication

To set Message Waiting Indication, the following conditions must be established:

• Assign message centre to a line.

• Select message centre for use.

• Assign the line to a set to Appear and/or Ring.

Assigning message centres to a line

You need to assign any one of five, or None, of the message centres to the line.

There can be as many as five message centres in a network; that is, five telephone

sets on the Enterprise Edge system can act as mailboxes in the message centres

offeredbyfivedifferentPBXsonthenetwork.ThesePBXsmayalsobefrom

different manufacturers.

Thus, for each message centre there may be different:

• numbers to be dialled to reach the mailbox from the set

• MWI strings received, indicating that the centre has a message in the mailbox

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Avaya BCM 2.0 Programming Guide de l'utilisateur Page 249