Practice Lab Reflections #6

• Great list of troubleshooting documents under the support web page: Technology > Voice > Gateway Protocols > All gateway Protocols > Config Examples and Technotes
• If you have DHCP issues, disable CSA using “utils csa disable”
• To configure LLDP-MED, go to SWITCHES > CISCO CATALYST 3750 SERIES SWITCHES > CONFIGURE > Configuration Examples and TechNotes > Configuration Guides > Catalyst 3750 Switch Software Configuration Guide, 12.2(50)SE > Configuring LLDP, LLDP-MED, and Wired Location Service
• To configure VATS over Frame Relay, go to IOS > 12.4 T > CONFIGURE > Configuration Guides > WAN >

  Cisco IOS Wide-Area Networking Configuration Guide, Release 12.4T > Expand Part 1: Frame Relay > Adaptive Frame Relay Traffic Shaping for Interface Congestion

• To capture the first several digits in a string variable in UCCX, use the following example: “set sFirstDigits = sAllDigits.substring(0,2)”.  This will capture the first two digits in a string.
• It is a good idea to mark all “emergency” route patterns in CUCM with Urgent Priority in order to avoid any T.302 inter-digit timeouts.
• Press voicemail button in SRST mode. On hunt pilot, check calling party mask to XXXX and it should work.
• Access list for signaling traffic

ip access-list extended Signaling-ACL
permit tcp any any range 1718 1721
permit tcp any any range 2000 2002
permit tcp any any range 2427 2428
permit udp any any range 11000 11999

• CCIE Voice techtorial from Cisco Live! this year had the following sample configuration for dspfarm profiles:

sccp ccm 10.1.1.1 identifier 1 priority 1 version 6.0+
sccp ccm 10.1.1.2 identifier 2 priority 2 version 6.0+
sccp ccm 10.1.1.3 identifier 3 priority 3 version 6.0+
!
sccp ccn group 1
associate ccm 1 priority 1
associate ccm 2 priority 2
associate ccm 3 priority 3
associate profile 10 register SB-CONF
 keepalive retries 5
switchover method immediate
switchback method immediate
switchback interval 15

• It is possible to verify queuing using the command “show policy interface”.
• A great place for best practices is in the CUCM SRND under CALL PROCESSING > INTEROPERABILITY OF UNIFIED CM AND UNIFIED CM EXPRESS.
• Remember to add the TERMINATE step at the end of a script, right before the END step.
• Placing an outbound H.323 call triggers an H.225 call setup conversation between devices.  As soon as the recipient picks up the receiver, an H.245 call control TCP handshake takes place between the endpoints.  During this interaction, TerminalCapabilitySet is negotiated.

UCCX Configuration Checklist

1. CUCM – CTI Manager Service Activation
2. UCCX – Define AXL Service Provider Address, Username, Password
3. UCCX – Define Cisco Unified CM Telephony Provider (CTI Manager), User Prefix (Jtapi user), Password
4. UCCX – RMCM Provider, User ID (Rm user), Password
5. UCCX – NTP Server
6. UCCX – Add new Application, associate with ICD script
7. UCCX – Cisco Media Termination Dialog Group Configuration
8. UCCX – Cisco Unified CM Telephony Subsystems Configuration
   • Define Cisco Unified CM Telephony Provider
   • Define Cisco Unified CM Telephony Call Control Group (Add CTI ports)
   • Define Cisco Unified CM Telephony Call Control Triggers
9. UCCX – Define RMCM Proivder
10. UCCX – Define Resource Group, and then Resources (or skills)
11. UCCX – Define Contact Service Queue (CSQ)