There are three sites at your customer’s installation. At sites A and B, Cisco Unity is integrated with Cisco Unified Communications Manager. Site A uses an extension range of 2000-3000, Site B 3100-3500. At Site C Cisco Unity is integrated with an Avaya PBX using DTMF integration with an extension range of 3200-3700. Can subscribers at all three sites use the cross-box login feature and not affect subscriber messaging?

A.
Yes, put all three sites in the same Cisco Unity dialing domain.

B.
Yes, if the option is initialized in the Advanced Settings Tool.

C.
No, only Sites A and B can be configured to use cross-box login.

D.
No, Site C in combination with either A or B can be configured to use cross-box login.