| 1 |
Which two steps are required to enable MGCP Gateway Fallback? |
| Answer: |
Enable MGCP Gateway Fallback using the ccm-manager fallback-mgcp command, and set the alternate application to default. |
| 2 |
Which device initiates SRST? |
| Answer: |
The SRST process is initiated by the IP phone sending a registration request to the SRST gateway. |
| 3 |
Which gateway protocol can provide call preservation when using ISDN to the PSTN? |
| Answer: |
H.323 can provide call preservation when using ISDN to the PSTN. |
| 4 |
Which command supports both extension addressing and E.164 addressing? |
| Answer: |
dialplan-pattern supports both extension addressing and E.164 addressing. |
| 5 |
Which two SIP functions does a gateway perform to enable SIP SRST? |
| Answer: |
A gateways performs SIP Registrar Server and B2BUA to enable SIP SRST. Version 3.0 used Redirect Server instead of B2BUA. |
| 6 |
Which certificate server can a Secure SRST router autoenroll with? |
| Answer: |
A Secure SRST router can autoenroll with Cisco IOS certificate server. |
| 7 |
Which gateway protocol should you use for a remote site with an E1 PRI to provide the best call preservation? |
| Answer: |
You should use H.323 for a remote site with an E1 PRI to provide the best call preservation. |
| 8 |
What is required to support integration to a centralized voice-mail system over a PRI? |
| Answer: |
The service provider must pass RDNIS. It might also be possible to support RDNIS using the forward-digits extra inband command on the dial peer if the router is running Cisco IOS 12.3(11)T or later. |