E
3 Features and Services

Extension Group

Description * A number of extensions can be grouped together as an extension group.
They can own the same mailbox to share the same information.
Up to 20 extension groups can be created in the system and each group can
contain a maximum 20 extensions.
Conditions
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A Subscriber cannot have more than one mailbox.
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The VPS turns on the Message Waiting Notification Lamp on each extension
when a message is left in the mailbox (see Message Waiting Notikation-
Lamp).
S.A.
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Extension Group (page 4-55)

Extension Numbering Plan .

Description Specifies the first one or two digits of the extension numbers in your PBX
so that the VPS can recognize the extension number as a valid one.
Conditions
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If a number does not contain the’specified figures, the VPS regards it as an
outside number and dials it via a CO line.
S.A.
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Extension Numbering Plan (page 4-63)

External Message Delivery List

Feature Ref. External Message Delivery Service
Description Allows the Subscriber to deliver an external delivery message to multiple
destinations with a single operation.
Conditions
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The Subscriber can maintain up to two lists.
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One External Message Delivery List accommodates up to eight entries.
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When the Subscriber changes some of the *entries in a list, the delivery
programs using the old list is canceled.
Subscriber
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Setting up an External Message Delivery List (Subscriber’s Guide page 3-4)

I External Message Delivery Service

Description Allows the Subscriber to deliver a message to anyone including the Non-
Subscriber. The VPS rings the telephone and plays the message directly to
the receiver.
3-22 Features