多項(xiàng)選擇題

Which two statements are correct about the signaling methods that are utilized for transmitting voice？（）

A. Channel-associated signaling transmits control signals in band and therefore reduces the bandwidth available for the voice data stream.
B. Channel-associated signaling utilizes a separate TDM channel for transmitting control signals.
C. Common channel signaling transmits control signals in band and therefore reduces the bandwidth available for the voice data stream.
D. Common channel signaling uses one of the TDM channels to transmit control information reducing the number of channels available for voice.
E. ISDN BRIs implement channel-associated signaling.

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多項(xiàng)選擇題

Which two VoIP capabilities are utilized when the CallManager and the gateway are configured for Survivable Remote Site Telephony？（）

A. Analog phones， connected to the PSTN， act as internal call agents if IP communication to the CallManager is lost.
B. An onsite gateway reroutes calls over the PSTN if IP communication to the CallManager is lost.
C. The IP phones can reroute calls over the PSTN if IP communication to the CallManager is lost.
D. Local voice gateways can assume the function of a call agent if IP communication to the CallManager is lost.
E. IP phones use an internal call agent if IP communication to the CallManager is lost.

單項(xiàng)選擇題

What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）

A. Call Management Link Agent
B. Traffic policing
C. Call Admission Control
D. QoS Link Congestion Management
E. Oversubscription Link Detection

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Which two statements are correct about the signaling methods that are utilized for transmitting voice？ （）

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Which two VoIP capabilities are utilized when the CallManager and the gateway are configured for Survivable Remote Site Telephony？（）

What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）

Which two statements are correct about the signaling methods that are utilized for transmitting voice？（）

What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）