Administering Cisco Unified Communications Manager

1. Managing Services and Initial Configuration of Cisco Unified Communications Manager Administering Cisco Unified Communications Manager

2. Outline Cisco Unified Communications Manager Initial Configuration Cisco Unified Communications Manager Network Configuration Options Cisco Unified Communications Manager NTP and DHCP Considerations DNS Reliance of IP Phones Cisco Unified Communications Manager Network and Feature Services Cisco Unified Communications Manager Enterprise Parameters Cisco Unified Communications Manager Service Parameters

3. Cisco Unified Communications Manager Initial Configuration

4. Cisco Unified Communications Manager Initial Configuration

5. Cisco Unified Communications Manager Network Configuration Options

6. Network Configuration Overview NTP CUCM Subscriber DHCP/TFTP CUCM Publisher/DHCP/TFTP DNS Master NTP Reference Clock DNS Server Internet

7. Network Components

8. Cisco Unified Communications Manager NTP and DHCP Considerations

9. NTP Strongly Recommended Publisher Master Reference Clock Subscriber The publisher synchronizes to the external master clock source. The subscribers get their clock source from the publisher.

10. Changing NTP Settings Add or delete NTP servers on the publisher. (Read-only for subscribers.)

11. DHCP Server Feature Support DHCP server in Cisco Unified CM is designed to serve IP phones. Provides a subset of Windows 2000 Server DHCP functionality. Sufficient for IP phone purposes. Not designed to serve other network devices (PCs, etc.). Only for smaller deployments (up to 1000 IP phones). Only one DHCP server per Cisco Unified Communications Manager cluster. DHCP server is a standalone server. No backup server exists. Multiple subnets can be configured for each server.

12. Steps to Configure DHCP Phone Support Activate DHCP Monitor Service. Add and configure the DHCP server. Configure the DHCP subnets.

13. Step 1: Activate DHCP Monitor Service

14. Step 2: Configure the DHCP Server Designate a node from the drop-down menu to be the DHCP server. Option 150 specifies the IP addresses of the TFTP servers to the phones. All other required entries default to 0.

15. Step 3: Configure the DHCP Subnet Choose the DHCP server. Configure subnet number and primary address range to be provided to the phones. Configure secondary address range as necessary (useful if you have a block of reserved addresses to exclude between primary and secondary range).

16. DHCP Migration Considerations When upgrading from Cisco Unified CM Release 4.x to 6.0: No migration provided from Windows 2000-based DHCP configuration to appliance-based DHCP configuration Reprovisioning of the DHCP service required Using Cisco Unified Communications Manager Release 6.0 server Using the DHCP Server feature on the Cisco IOS router or switch Use third-party DHCP servers

17. DNS Reliance of IP Phones

18. IP vs. DNS Considerations Cisco Unified Communications Manager Release 6.0 can use DNS names (default) or IP addresses for system addressing.

19. SCCP Call Flow with DNS 2) Signaling Protocol 2) Signaling Protocol IP Phone A IP Phone B 3) RTP Media Path 1) DNS Query/Response 1) DNS Query/Response DNS Server Before sending packets, IP phones will query the DNS server to resolve the IP address of the Cisco Unifed CM server.

20. SCCP Call Flow Without DNS 1) Signaling Protocol 1) Signaling Protocol IP Phone A IP Phone B 2) RTP Media Path • No extra step (DNS lookup). • Higher availability (no dependency on the DNS server). • The recommendation is to remove the DNS reliance.

21. Removing DNS Reliance Enables Cisco IP phones and other devices controlled by Cisco Unified CM to contact the Cisco Unified CM without resolving a DNS name • In Cisco Unified CM Administration, choose System > Server. The Find and List Servers window appears. • Click on a server name. The Server Configuration window appears. • Replace the hostname and enter the IP address of the server in the Host Name/IP Address field. Click Save.

22. Cisco Unified Communications Manager Network and Feature Services

23. Network and Features Services

24. Network Services • Categorized into the following groups: • Performance and monitoring services: Cisco CallManager Serviceability RTMT, Cisco RTMT Reporter Servlet, etc. • Backup and restore services: Cisco DRF Master and Cisco DRF Local • System services: Cisco CallManager Serviceability, Cisco CDP, Cisco Trace Collection tool, etc. • Platform services: Cisco DB, Cisco Tomcat, SNMP master agent, etc. • DB services: Cisco Database Layer Monitor • SOAP services: SOAP-Real-Time Service APIs, etc. • CM services: Cisco CallManager Personal Directory, Cisco Extension Mobility Application, Cisco CallManager, and Cisco IP Phone Services • CDR services: Cisco CDR Repository Manager and CDR Agent • Admin services: Cisco CallManager administration

25. Feature Services Categorized into the following groups: Database and admin services: Cisco AXL Web Service, Cisco Bulk Provisioning Service, Cisco TAPS Service Performance and monitoring services: Cisco Serviceability Reporter, Cisco CallManager SNMP Service CM services: Cisco CallManager, Cisco TFTP, Cisco CTIManager, Cisco Extension Mobility, etc. CTI services: Cisco CallManager Attendant Console Server, Cisco IP Manager Assistant, Cisco WebDialer Web Service CDR services: Cisco SOAP–CDRonDemand Service,Cisco CAR Scheduler, Cisco CAR Web Service Security services: Cisco CTL Provider, Cisco Certificate Authority Proxy Function Directory services: Cisco DirSync Voice Quality Reporter services: Cisco Extended Functions

26. Service Activation • To enable Cisco Unified Communications Manager Release 6.0 feature services, perform the following tasks: • Access Cisco Unified CM Serviceability. • Go to Tools > Service Activation. • Select your server. • Enable the necessary services. • Go to Tools > Control Center – Feature Services and select your server. • Verify that the configured services are up and running.

27. Service Activation Screenshot 4. Save and perform settings. 5. Go to Control Center – Feature Services page. Optional: Select default services based on a single-server configuration 1. Select the server. 2. Select the services that should be activated. 3. Deselect the services that should be deactivated.

28. Control Center Screenshot Start, stop, restart, and refresh selected service. Service start time and up time Current status Activation status Select service to start, stop, or restart.

29. Cisco Unified Communications Manager Enterprise Parameters

30. Enterprise Parameters Used to define cluster-wide system settings. Apply to all devices and services in the same cluster. After installation, enterprise parameters are used to set initial values of device defaults. Only change if you fully understand the feature that you are changing or if instructed to do so by Cisco TAC.

31. Example of Enterprise Parameters

32. Changing Enterprise Parameters From Cisco Unified Communications Manager Administration page, choose System>Enterprise Parameters. Update the appropriate parameter settings. To view the description of a particular enterprise parameter, click the parameter name. To view the descriptions of all the enterprise parameters, click the ? button. To save the changes, click Save.

33. Enterprise Parameter Screenshot 2. Save the changes. Default setting 1. Select the new setting.

34. Phone URL Enterprise Parameters When removing DNS reliance, change all hostnames in URLs to IP addresses.

35. Cisco Unified Communications Manager Service Parameters

36. Service Parameters Service parameters for Cisco Unified Communications Manager allow you to configure parameters for different services. Examples for service parameters of the Cisco Unified Communications Manager call-processingservice are: T302 timer to speed up dialing Enable call detail records Define extension mobility maximum login time Define attendant console username Define voice media-streaming application codecs

37. Example of Service Parameters

38. Changing Service Parameters From Cisco Unified CM Administration page, choose System>Service Parameters. Select the Server and choose the Service. Update the appropriate parameter settings. If you cannot find the parameter, click the Advanced button to display hidden parameters. To save the changes, click Save.

39. Service Parameter Configuration Screenshot Select server. Select service.

40. CallManager Service Parameters Screenshot Optional: Click Advanced to show hidden service parameters. 2. Save the changes. Verify/configure service settings Default setting 1. Select the new setting.

41. Summary Cisco Unified Communications Manager initial configuration includes network configuration, activation of feature services, and enterprise and service parameter configuration. Cisco Unified Communications Manager network configuration options include NTP configuration, DHCP server configuration, and using DNS versus IP addresses. The Cisco Unified Communications Manager DHCP service is designed to serve IP phones. In order to avoid DNS reliance of IP phones, change hostnames to IP addresses. Network services are automatically activated, while Feature services are activated by the Cisco Unified Communications Manager administrator. Enterprise parameters are used to define cluster-wide system settings. Service parameters are used to configure parameters of specific services.