Nortel Networks NN43001-121 manual Remote Call Control with SIP CTI

Remote Call Control with SIP CTI 73

ipDialog Ethernet Phone Office Communicator clients can work with the ipDialog Ethernet Phone only if it is tandemed through a CS 1000.

Country or region tone configuration Country or region tone configuration is not supported by Office Communications Server or Office Communicator.

Conference Incorrect participants are displayed on the conference conversation window in the following scenario. For example, User A makes a call by SIP alias in Office Communicator–Computer mode to User B in Office Communicator–VoIP mode. User B answers the call and conferences in User C in Office Communicator–VoIP mode. User C is invited to the conference by phone number. User C joins the conference. This results in four participants being displayed in the conversation window instead

of three. This is a Microsoft limitation and can be reproduced when the CS 1000 system, Mediation Server outbound routing, and static Front End routes are disabled.

Active Directory configuration A record in the Active Directory must be created for all CS 1000 phones whether there is an Office Communicator client associated with it or not. If a CS 1000 phone is not in the Active Directory, an OC client user will notice the following:

•Cannot add the telephone number to the Office Communicator Contact List.

•Will receive two toasts when calls are made from these telephones.

DTMF detection In order to handle DTMF detection properly with OCS 2007, all network components must support RFC 2833 which means all Branch or Main offices need to be running a Release. 5.0 software as a minimum. Otherwise there will be problems interacting with Interactive Voice Response (IVR) systems, collect calls, using meet-me conference bridges, and so on.

Remote Call Control with SIP CTI

The Remote Call Control component works in all configurations that include a Signaling Server and is supported for IP, digital, and analog telephone types.

Office Communicator client uses the ECMA TR/87 specification. Figure 24 "Simple network diagram" (page 74) shows a sample customer network that deploys Active Directory, the OCS 2007 Front End, OCS proxy server with MCM, and CS 1000.

Nortel Communication Server 1000

Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007

NN43001-121 01.03 Standard

Release 5.0 30 April 2008

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