Cisco Troubleshooting Cisco IP Telephony and Video (CTCOLLAB) Set 1

Cisco Unified Communications Manager does not support SIP gateways. ✘ The gateway does not have the UC license installed. ✘ The gateway does not have Cisco Unified Border Element session licensing. ✘ Cisco Unified Communications Manager does not show a SIP gateway as registered if it is not properlyconfigured. ✔ Cisco Unified Communications Manager never shows a SIP gateway as registered even when it isproperly configured. ✔

missing the configuration command isdn bind-l3 ccm-manager under the ISDN interface ✘ mismatched domain name on the MGCP gateway and Cisco Unified Communications Managergateway configuration ✘ misconfigured route group in Cisco Unified Communications Manager ✘ incorrect MGCP IP address specified in the gateway configuration in Cisco Unified CommunicationsManager ✔

A firewall is blocking all traffic from the endpoints to the Cisco VCS. ✘ The Cisco VCS has no SIP domains configured. ✘ The Cisco VCS is blocking the endpoints because of duplicate ID entries. ✘ The endpoints do not have the SIP option key installed. ✔ SIP does not work, because SIP is used for Cisco Unified Communications Manager registration only. ✔

The H.323-based system needs an E164 number to register to Cisco Unified Communications
Manager, and the Cisco DX70 needs to have the MAC address configured first on the Cisco VCS
Control. ✘ The H.323-based system needs to register to the Cisco VCS Control with an E.164 number, and theCisco DX70 needs the TFTP address to register on the Cisco Unified Communications Manager. ✘ Both systems need to register to the Cisco VCS Control, but the H.323-based system needs to have thegatekeeper setting set to "Direct." ✘ Both systems need to register to the Cisco Unified Communications Manager, as the Cisco VCS Controlis used only for firewall traversal. ✔ You need Cisco TelePresence Management Suite to register Cisco TelePresence systems. ✔

10 ms ✘ 15 ms ✘ 25 ms ✘ 30 ms ✔ 50 ms ✔

The route partition that is configured in the CCD requesting service is not listed in the calling phone
CSS. ✘ The trunk CSS does not include the partition for the called directory number. ✘ The MGCP gateway is not registered. ✘ The calling phone does not have the correct CSS configured. ✔ The calling phone does not have the correct partition configured. ✔

The endpoint does not have the multisite option installed. ✘ The endpoint does not have the partition of the bridge in its CSS. ✘ The bridge is out of all licenses. ✘ The endpoint is assigned a region without enough configured bandwidth for video. ✔ The bridge is not able to host video calls. ✔

The multisite option key is missing. ✘ The multisite configuration is missing. ✘ The conference option key is missing. ✘ The conference configuration is missing. ✔ CiscoTelePresence systems cannot make multipoint calls without a Cisco TelePresence Server. ✔

The gateway is not registered in Cisco Unified Communications Manager. ✘ The gateway IP address that is configured in Cisco Unified Communications Manager does not matchthe IP address that is configured at the gateway in the h323-gateway voip bind srcaddr command. ✘ The Cisco Unified Communications Manager does not have a matching route pattern to match thecalled number. ✘ The gateway is missing the command allow-connections h323 to h323 under the voice service voipconfiguration. ✔

Use DNA to analyze the dialing permissions of the Cisco IP Phones. ✘ Use DNA to generate actual calls to the PSTN. ✘ Use RTMT to analyze the dialing permissions of the Cisco IP Phones. ✘ Use RTMT to generate actual calls to the PSTN. ✔