多项选择题
A.SIP support in dial peers is a Cisco IOS function.
B.Use the notify-based DTMF relay mechanism that is proprietary to Cisco.
C.SIP support in Cisco IOS is a function of localized call processing integrated with Cisco Unity Express.
D.Use either the notify-based DTMF relay mechanism that is proprietary to Cisco or the RFC-based DTMF relay.
E.The SIP server must be configured for the E.164 numbers that are going to register with the Cisco CallManager Express database.
单项选择题 Whichstatementbestdescribesecho?（）
单项选择题 Refer to the exhibit. The Hamilton Hair Emporium was having difficulty hearing during conference calls. This configuration adjustment was made, and now the company is experiencing sound distortion. What is the cause?（）
单项选择题 Refer to the exhibit. Where would a Cisco Unity Express Network Module physically reside? （）
