Lucent-technologies Octel Unified Messenger Concepts and Planning Guid Instrukcja Użytkownika Pobierz pdf (Strona 41)

Sizing the system

101-1620-005 2-15

Types of operations The Octel Unified Messenger voice servers open data streams between

voice servers and:

n Exchange servers.

n Client systems.

The actual Exchange server associated with each data stream depends on

the operation and, in some cases, the associated mailbox:

n The operation of telephone answering results in the establishment

of a data stream between the voice server and the voice server’s

peer e-mail server.

n The following operations result in the establishment of a

connection between the voice server and the Exchange server

containing the mailbox of the relevant subscriber:

— Playing back a voice message over the telephone.

— Recording a voice message to be sent to another subscriber.

— A caller listening to one of the subscriber's prerecorded

greeting messages.

It is possible, using the information above, to calculate the worst-case and

normal throughput requirement for each voice server and Exchange server

pairing.

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Lucent-technologies Octel Unified Messenger Concepts and Planning Guid Instrukcja Użytkownika Strona 41