A.analog trunks that provide the Survivable Remote Site Telephony (SRST) feature
B.analog trunks that provide VoIP gateway functionality
C.analog trunks that connect a gateway to plain old telephone service (POTS) device such as analog phones, fax machines, and legacy voice-mail systems
D.analog trunks that connect a gateway to a central office (CO) or private branch exchange (PBX)
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A.sampling
B.packetization
C.quantization
D.serialization
A.The router that is directly connected to the IP phone will look up the called number in its call routing table.
B.The router that is directly connected to the IP phone will inform its call agent when a service request is detected.
C.When the IP phone is picked up,the IP phone initiates the service request.
D.The directly connected router passes the collected digits to its call agent,and the call agent looks up in its call-routing table the called number.
A.propagation delay
B.voice packet serialization delay
C.congested egress queues
D.header overhead
E.packets dropped because of CRC errors
A.Calls to the PSTN can be made via the use of FXO or T1/E1 trunk ports.
B.Calls to the PSTN can be made via FXS or T1/E1 trunk ports.
C.Analog and IP phones can be connected to the VoIP network via FXO or T1/E1 trunk ports.
D.Calls between analog phones that are attached to the FXS ports in a VoIP network can be completely processed by voice-enabled routers.
A.The FXS interface allows an analog connection to be directed at the public switched telephone network (PSTN’s) central office.
B.The FXS interface connects directly to a standard telephone,fax machine,or similar device and supplies ring,voltage,and dial tone.
C.The FXS interface connects directly to an IP phone and supplies ring,voltage,and dial tone.
D.The FXS interface connects directly to ISDN voice channels.
最新試題
Which two functions can be provided by an Integrated Services Router (ISR) in a VoIP network?()
In the design of a QoS solution, which two factors should be taken into consideration?()
Which two statements are true about Voice over IP (VoIP) packet delivery in a digital infrastructure? ()
The Cisco SDM will create a QoS policy that provides services to two types of traffic. Which two statements indicate the default QoS parameters that are created by SDM?()
Which three benefits are realized by implementing Wireless LAN Solution Engine (WLSE)?()
Which three functions can an Integrated Services Router perform in a VoIP network?()
When Cisco SDM is used to generate QoS policy, various QoS classes will be created and assigned a percentage of the interface bandwidth. Which three statements indicate the default bandwidth values that are assigned by SDM for outgoing traffic on a WAN interface? ()
What are the three models of quality of service (QoS) in a network?()
Which two VoIP capabilities are utilized when the CallManager and the gateway are configured for Survivable Remote Site Telephony?()
Which of the items stated is typically the most expensive method of improving QoS across WAN links?()