The router that is directly connected to the IP phone will look up the called number in its call routing table.
The router that is directly connected to the IP phone will inform its call agent when a service request is detected.
When the IP phone is picked up，the IP phone initiates the service request.
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.
第1题：
Which statement about tunnel bow thrusters fitted to large vessels is TRUE ________．
A.They are effective on most vessels at speeds up to 10 knots
B.Because of their location，most modern installations have as much power as a tug
C.They are fully effective at all drafts
D.When going astern at slow speed，they provide effective steering control
第2题：
Which IP telephony deployment model uses an H.225 Gatekeeper-Controlled trunk for calladmission control within existing H.323 environments？（）
第3题：
A.A
B.B
C.C
D.D
第4题：
Which statement is true about the distributed call control in a VoIP network？（）
第5题：
Which statement is true about the routing table?（）
第6题：
Which statement is true about a distributed call control environment and the processing of dialed digits from an IP phone？（）
第7题：
Which statement is true about the routing table?（）
第8题：
A. single site with centralized call processing
B. single site with distributed call processing
C. multisite with centralized call processing
D. multisite with distributed call processing
第9题：
Which statement is true about vishing？（）
第10题：
Which statement is true about IBGP routers? （）