Your customer is asking about the Multiple Appearance Directory Number (MADN) feature that has been added in support of CS1000 migrations. It includes Single Call Appearance/Arrangement (SCA) which works like Communication Manager bridging, and multiple Call Appearance/Arrange (MCA) which works like bridging on the CS1000.
Which statement about MCA is true?

A customer has a new location with 1,900 users. They require a UC solution that will support 20% growth without adding additional hardware. They are interested in minimizing the equipment footprint and do not require redundancy.
What will meet customer's needs?

You are designing a Communication Manager (CM) 8 solution with centralized ISDN trunks at the main site and two remote gateway locations. Each remote location will be connected to the main server via dedicated, point-to-point WAN service. Main - CM 8.1 duplex pair with 2-G450s and 250 IP stations Remote 1 - S8300E LSP/G450 with 125 IP stations Remote 2 - S8300E LSP/G430 with 30 IP stations.
To ensure that no one site Is overwhelmed by CM traffic, what is the recommended number of network regions required for this design?

While working on a proposal that includes Avaya IX messaging you are comparing required features and licensing. Which Avaya IX Messaging feature requires an additional license?

You are putting together a proposal for a Communication Manager solution that has the following requirements:
* 300 9611G telephones running H.323
* 275 9641GS telephones running SIP
* 75 Analog telephones
* 350 3129 telephones
* 100 Avaya Equinox clients
300 9611G telephones running H.323
275 9641GS telephones running SIP
75 Analog telephones
350 J129 telephones
100 Avaya Equinox clients
How many endpoints will directly register/connect to Communication Manager?