Which two locations are the best locations that an end user can use to determine if an IP phone is working in SRST mode? (Choose two.)

A.
Cisco Unified Communications Manager Administration

B.
IP phone display

C.
Cisco Unified SRST Router

D.
Cisco Unified MGCP Fallback Router

E.
physical IP phone settings

Explanation:
IP Phone display and Physical phone IP settings are two locations were an end user can determine if an IP phone is working in SRST mode.
Link: http://my.safaribooksonline.com/book/telephony/1587050757/survivable-remote-site-telephony-srst/529