The New York office needs to connect a CallManager H.225 trunk to a SIP service provider. The CallManager is version 4.1.3. To provide security and protocol interworking, you plan to implement an IPIPGW to connect with the service provider, as shown in Figure 18-6.
Figure 18-6. New York IPIPGW Implementation
CallManager Configuration
Note the following points in CallManager trunk configuration:
Example 18-15 shows the configuration steps for implementing the IPIPGW. In this example, the Cisco IOS gatekeeper and the IPIPGW are running on the same router platform.
[View full width] ! ! Enabling IPIPGW functionality ! IPIPGateway#config t IPIPGateway(config)#voice service voip IPIPGateway(conf-voi-serv)#allow-connections h323 to sip IPIPGateway(conf-voi-serv)#allow-connections sip to h323 IPIPGateway(config-voi-serv)#exit ! ! Configuring the gatekeeper ! IPIPGateway(config)#gatekeeper IPIPGateway(config-gk)#zone local via_gk zone2 IPIPGateway(config-gk)#zone local CCM zone2 invia via_gk outvia via_gk IPIPGateway(config-gk)#zone prefix CCM 2125553... gw-priority 6![]() ![]() ![]() ![]() |
Figures 18-7, 18-8, and 18-9 illustrate the CallManager H.225 trunk configuration.
Figure 18-7. CallManager H.225 Trunk Configuration
Figure 18-8. CallManager H.225 Trunk Configuration (Continued)
Figure 18-9. CallManager H.225 Trunk Configuration (Continued)
Part I: Voice Gateways and Gatekeepers
Gateways and Gatekeepers
Part II: Gateways
Media Gateway Control Protocol
H.323
Session Initiation Protocol
Circuit Options
Connecting to the PSTN
Connecting to PBXs
Connecting to an IP WAN
Dial Plans
Digit Manipulation
Influencing Path Selection
Configuring Class of Restrictions
SRST and MGCP Gateway Fallback
DSP Resources
Using Tcl Scripts and VoiceXML
Part III: Gatekeepers
Deploying Gatekeepers
Gatekeeper Configuration
Part IV: IP-to-IP Gateways
Cisco Multiservice IP-to-IP Gateway
Appendix A. Answers to Chapter-Ending Review Questions
Index