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Modular Messaging features
November 2004
Avaya Modular Messaging Concepts and
Planning Guide
5-23
Offline access to Call Answer messages
The Modular Messaging Offline Access (OLA) feature provides
subscribers increased availability to Call Answer messages, by providing
emergency access to Call Answer messages recently queued for delivery,
even when the message store cannot be accessed.
In the event that a message store server is not reachable, the MAS
continues to queue any new Call Answer messages in a local store until
the message store server comes up or online. During this period,
subscribers can use the Modular Messaging Aria telephone user interface
(TUI) to access their Call Answer messages.
Note: Modular Messaging AUDIX TUI subscribers cannot access
new Call Answer messages while the message store is
offline.
With Modular Messaging—MSS, subscribers also have offline TUI
access to recently received fax messages. Although fax messages cannot
be printed during offline access, header information is available,
including the page count and ANI information from the sender's fax
machine. In addition, subscribers can also review any attached voice
message.
The TUI available to subscribers during offline access is a limited,
defeatured TUI, providing options only to retrieve and listen to new Call
Answer messages. Subscribers will not have complete control of their
mailbox. Subscribers cannot use this TUI to access other sources of
messages such as from local or networked subscribers, broadcast, ELA,
Enterprise Lists, Delivery Status Notifications, and so on, or to change
message state, delete, forward, or reply to messages. The system informs
subscribers that the TUI offers limited services.
In a multi-MAS voice mail domain, each MAS migrates copies of Call
Answer messages in its local store to a common repository known as the
Offline Call Answer Store.
The Offline Call Answer store acts as a single repository for Call Answer
messages taken for all subscribers in the voice mail domain, in the last ‘x’
number of hours. The value of ‘x’ is 24 by default, but can be changed to
any value from 1 to 99, subject to disk capacity.
If the message store is continuously offline for more than ‘x’ hours, the
messages are retained until the message store comes back online and they
can be delivered.
Queued messages remain in the Offline Call Answer Store until they roll
off the MAS. Thus, when subscribers use the TUI to access Call Answer
messages in offline conditions, they may hear messages that they had
deleted earlier, when the message store was online.