In a VoIP network, which of the following factors are related to the bandwidth saved by VAD technology ?

Which of the following configuration steps should be performed when configuring QoS Polic ?

The configuration commands on the MSR router are as follows:
acl number 2003
rule 0 permit source 192.168.0.0 0.0.0.255
#
traffic classifier 1operator or
if-match acl 2003
#
traffic behavior 1
filter den
#
qos polic 1
classifier 1behavior 1
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos appl polic 2 outbound
Then when the source address are 192.168.2.2 , 192.168.0.2 the packets from the port G0 / 1 forwarding outwardly, the following statement is correct ______

In BGP MPLS VPN in the network, the two PE respectively connected the two branches of the same private network user, is required between visits two divisions, and the BGP MPLS VPN is not part of the network Agency BGP reflector, then the two sets of PE between devices will necessarily need to establish which of the following neighbor relationship ?

Which of the following messages is used by the called party to indicate to the calling party that the call request is being processed and will not receive other call setup information for the call request ?