Nortel Networks NN43001-122 manual Overview

Overview 13

dialing plan to access services provided by Communications Server 1000 with Microsoft Exchange Server 2007 Unified Messaging.

•Configuration of the voice mail soft key cannot be changed if there is a combination of CallPilot and Microsoft Exchange Unified Messaging voice mail users on a single node. A recommended deployment solution would be to have CallPilot users and Microsoft Exchange Unified Messaging users associated with separate Line TPS nodes.

The voice mail soft key feature on the phone set assigns a unique key to each of the voice messaging functions.

•While operating with an MCS PC Client, Microsoft Exchange Unified Messaging calls can not be placed on hold.

•The existing limitation on the NRS of multiple endpoints with the same static IP address is not supported. This affects network environments where two CDP domains are configured to use the same Microsoft Exchange Server 2007.

•The IP Softphone 2050 does not support RFC2833; therefore, it can not be used with the Subscriber Access and Auto Attendant features of the Exchange Server 2007.

•If a call originates from an H.323 endpoint (CS 1000/BCM/SRG) and is tandem transferred by the CS 1000 to the Microsoft Exchange Unified Messaging Server using SIP, the Subscriber Access and Auto Attendant feature can only be accessed by voice command and not by keypad (DTMF), as there is no support for RFC2833 over an H.323 network.

•If the far end does not support RFC2833 (with a payload value of 101), the Play on Phone functionality is not supported.

•Calls forwarded by Integrated Call Director (ICD) to Microsoft Exchange Unified Messaging are not supported.

Microsoft Exchange Unified Messaging operational characteristics

•When a Microsoft Exchange Unified Messaging-enabled user plays back stored voice mail messages, the order of playback begins with the last message recorded. That is, when voice mail has been received (in order) from User 1, User 2, and User 3, the messages are replayed in the order of User 3, User 2, User 1.

•For a voice mail message that is a reply to an earlier voice mail message, the reply message is played before the playback of the original message.

•If there is only one voice mail message waiting for the user, it is not possible to undelete that voice mail message once it has been deleted.

Nortel Communication Server 1000

Communication Server 1000 with Microsoft Exchange Server 2007 Unified Messaging Fundamentals NN43001-122 02.04

24 October 2008

Copyright © 2008 Nortel Networks