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多項選擇題

Which two characteristics apply to a CAS T1 interface?（）

A.signaling travels in-band
B.up to 24 voice channels
C.up to 32 voice channels
D.signaling travels in time slot 17
E.uses Q.931 signaling protocol in a common channel

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多項選擇題

Refer to the exhibit. The Greene Supply Company is integrating Cisco Unified CallManager Express into a SIP network. Which two statements are accurate?（）

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.

單項選擇題

Which statement best describes echo?（）

A.Echo is the discernable leak-through of your own Rx path into your own Tx path.
B.Echo is the discernable leak-through of the packets of your Rx path into your own Tx path.
C.Echo is the nonaudible leak-through of the packets of your Rx path into your own Tx path.
D.Echo is the audible leak-through of the packets from the transmit path into your own receive path.
E.Echo is the nonaudible leak-through of the packets of your Tx path into your own Rx path.

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