Which two technologies enable the worker to re-register locally?

A remote worker with Avaya Windows Communicator visits their office headquarters where the IP Office and one-X® Portal are located.

Which two technologies enable the worker to re-register locally? (Choose two.)
A . Border controller
B . Wi-Fi access
C . Split DNS
D . Port forwarding
E . XMPP

Answer: B,C

Explanation:

References: https://downloads.avaya.com/css/P8/documents/100175092 Page: 40