Nortel Networks NN43001-121 manual Planning and engineering

70Planning and engineering

Office Communicator-initiated Call Transfer in Computer and PBX Integration Enabled If the Office Communicator transfers a call, the SIP stack of the CS 1000 must handle the request to transfer the call. As such, the number a user is transferred to is not subject to the Class of Service associated with either user (the transferred party or the party performing the transfer). The Class of Service and Call Restriction that control the transfer is that of the SIP trunk itself.

Multiple customer operation Multiple customer operation is not supported within a single Signaling Server; a separate Signaling Server is required for each customer. Each customer configured on the Call Server requires a separate node number and domain. For more information about how to configure a multiple customer environment, see "Multiple customer network" (page 40).

Deployment You can find all of the information required to support Office Communications Server 2007 and Microsoft Office Communicator deployment on the Microsoft Web site. Download Microsoft technical documentation from the Download Center at www.microsoft.com.

MCM 3.0 uses LDAP queries to the Active Directory server for some OC user’s attributes. You must engineer the Active Directory server properly to provide the expected performance for the LDAP queries (less than 25 milliseconds). Office Communications Server and Active Directory APIs are used for queries and mapping.

Office Communications Server 2007 availability The Office Communications Server 2007 delivers an availability of up to 99.99% as described on the Microsoft Web site at www.microsoft.com. This is a Microsoft limitation.

Office Communications Server 2007 redundancy The Office Communications Server 2007 redundancy model is supported, with limitations, using Load Balancers. For more information, see Load Balancer.

Office Communicator Web Access Converged Office requires the client support SIP Gateway functionality. The Web version of Office Communicator, called Office Communicator Web Access, does not support SIP Gateway. Therefore, Office Communicator Web Access does not work with Converged Office.

Office Communicator Mobile Converged Office requires the client to support Telephony Gateway. The Mobile version of Office Communicator, called Office Communicator Mobile (COMO), has limited support for Telephony Gateway. Telephony Gateway is only supported when the device runs Windows Mobile 5.0. VoIP calls work for incoming calls, but outgoing

Nortel Communication Server 1000

Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007

NN43001-121 01.03 Standard

Release 5.0 30 April 2008

Copyright © 2005–2008, Nortel Networks