User`s guide

15(31)
Date Rev.
Document no.Prepared
Doc respons/Approved Checked File reference
99-07-15 E
241/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Subject responsible
Capacity
There is no limit to the number of messages that an
extension can send or receive.
The total number of messages in the system can
amount to a maximum of 1000.
The number of voice messages is also limited by the
available capacity on the VMU-D/VMU-HD/MFU
board.
Stored messages are protected in the event of power
failure.
Limitations
Capacity of speech channels:
VMU-D/VMU-HD 8 or 16
MFU 4
The function "retrieving messages" has a lower priority
than the voice announcements to the external caller.
To prevent that too many channels are blocked
simultaneously by the retrieving function, it is possible
to restrict the access to all channels.
If no voice channels are free for the internal retrieving,
the following message is shown on the display ( if any )
of the caller:
STANDARD telephone
If no voice channels are free, external retriever or
telephone sets without a display will receive ringing
tone until a voice channel is free again.
If there is no free voice channel within timeout, the
external caller will be rerouted to the reroute position of
the relevant trunk.
Programming
Message facility with a VMU-D board
For information concerning the message facility with a
VMU-D, see MAILBOX SYSTEM,
document 340/155 34-ASB 150 02 Uen.
Message facility with a VMU-HD/MFU board
For information concerning the message facility with a
VMU-HD/MFU, see MAILBOX SYSTEM,
document 340/155 34-ASB 150 02 Uen.
Equipment
VMU-D/VMU-HD/MFU board(s) must be installed.
10 Jul 14:40 +15˚
CONGESTION TRY LATER