Cisco Cisco IOS Software Release 12.2(11)T
Network Access Server Package for Media Gateway Control Protocol
Feature Overview
3
Cisco IOS Release 12.2(2)XB and Release 12.2(11)T
Figure 1
Media Gateways Operating As Network Access Servers
Benefits
Key benefits of the Network Access Server Package for Media Gateway Control Protocol feature are
derived from the presence of universal ports that are able to terminate both voice and data calls under
control of the MGCP call agent. These benefits include the following:
derived from the presence of universal ports that are able to terminate both voice and data calls under
control of the MGCP call agent. These benefits include the following:
•
Cost savings
–
Sharing of trunks (T1 or E1) for dial and voice services
–
Collapsed IP backbone infrastructure
–
Simplified operations and management
•
Increased revenue
–
Optimized utilization of trunk (T1 or E1) resources
•
Flexibility in deploying new services
•
Flexibility in access network engineering
Restrictions
•
The call agent must support the MGCP NAS package.
Media gateway
controller
(call agent)
Originating
media gateway
(O-MG)
Signaling
gateway
PSTN
SS7
SS7
ISUP/IP
ISUP/IP
Calling
party
voice
voice
Fax call
Data
call
Data, voice, fax, and wireless customers
Data, voice, fax, and wireless customers
RTP
ISUP/IP
Packet network
MGCP
MGCP
TDM (T1 or E1)
TDM (T1 or E1)
Terminating
media gateway
(T-MG)
Called
party
voice
voice
Fax call
62353
Data
call
Media gateway
controller
(call agent)
Signaling
gateway
PSTN