In a previous tutorial we completed Cisco Unified Communications Manager 8.5.1 installation. In this tutorial we are going to continue with CUCM configuration to support Cisco phones according to our network topology. At the end on the tutorial we should be able to place phone call between Cisco IP phone 7961 connected to Cisco Catalyst 3550 and Cisco IP Communicator installed on VMware virtual machine.
Cisco Unified Communications Manager Configuration
Once installation is completed open CUCM address http://192.168.100.252 in your web browser. Be aware that only IE, Firefox and Safari browsers are officially supported. Click on Cisco Unified Communications Manager link in Installed Applications menu. You will be redirected to Cisco Unified CM Administration page https://192.168.100.252/ccmadmin/showHome.do
Type username ccmadmin and password ccmadmin to login to Cisco Unified CM Administration page.
1. System Parameters Configuration
Navigate to System -> Server. Click on Find button and the server CUCM-I will appear in the server list. Click on CUCM-I server to edit CUCM-I parameters. Server can be defined either by its hostname or IP address. As we have not deployed DNS server in our home Local Area Network, edit Host Name/IP Address option and type IP address 192.168.100.252. Add server description if you want and then click on Save button.
Picture 1 - Server Configuration
Note: Always use Save button to save configuration changes.
b) Cisco Unified CM
Navigate to System -> Cisco Unified CM. Click on CM_CUCM-I that is presented in the list. Change configuration options as following:
Cisco Unified Communications Manager Name -> CUCM-I
Starting Directory Number -> 3000
Ending Directory Number -> 3010
Auto-registration Disabled on this Cisco Unified Communications Manager -> uncheck the Auto-registration Disabled check box
Picture 2 - Cisco Unified CM Configuration
Note: We are using Autoregistration feature to allow Cisco phones automatically register with CUCM.
c) Cisco Unified CM Group
Navigate to System -> Cisco Unified CM Group. Click on the CM group Default. Change configuration options as following:
Name -> Branch-Group
d) Phone NTP Reference
Navigate to System -> Phone NTP reference. Click on Add New button and changes NTP configuration.
Picture 3 - Phone NTP Reference Configuration
e) Date/Time Group
Navigate to System -> Date/Time Group. Click on CMLocal Date/Time Group. Change configuration options as following:
Time Zone -> (GMT+1:00) Europe/Bratislava
Add Phone NTP Reference -> 192.168.100.254 and click on Add Selected button
Picture 4 - Date/Time Group Configuration
Navigate to System -> Region. Click on the Default region and change its name to Branch-Region. Leave other parameters to their default values.
Navigate to System -> Location. Click on Add New button. Create a new location Branch-Location.
h) Device Pool
Navigate to System -> Device Pool. Click on the Default Device Pool and change its parameters as following:
Device Pool Name -> Branch-Pool
Cisco Unified Communications Manager GroupRequired Field -> Branch-Group
Dare/Time Group -> CMLocal
Region -> Branch-Region
Location -> Branch-Location
Network Locale -> Slovakia
2. Media Resources Configuration
Navigate to Media Resources -> Annunciator. Click on ANN_2 annunciator and modify annunciator settings according to the picture.
Picture 5 - Annunciator Configuration
b) Software Conference Bridge
Navigate to Media Resources -> Conference Bridge. Click on CFB_2 bridge and modify its settings according to the picture.
Picture 6 - Conference Bridge Configuration
c) Media Termination Point
Navigate to Media Resources -> Media Termination Point. Click on MTP-2 termination point and modify its settings according to the picture.
Picture 7 - Media Termination Point Configuration
d) Music On Hold (MOH) Server
Navigate to Media Resources -> Music On Hold Servers. Click on MOH_2 music on hold server and modify its settings according to the picture.
Picture 8 - Music On Hold (MOH) Server Configuration
e) Media Resource Group
Navigate to Media Resources -> Media Resource Group and add a new Media Resource Group. Click on the arrow symbol to add all available media resources.
Picture 9 - Media Resource Group Configuration
f) Media Resource Group List
Navigate to Media Resources -> Media Resource Group List. Click on Add New button and modify its settings according to the picture.
Picture 10 - Media Resource Group List Configuration
g) Change Media Resource Group List in Device Pool Configuration
Navigate to System -> Device Pool -> Branch-Pool. Select a media resource group list Branch-MRGL-I in Media Resource Group List setting.
3. Starting Services
So far we have configured CUCM to bale to connect Cisco IP phones. The last step consists of activation required CUCM services. Select Cisco Unified Serviceablility in Navigation box at the right corner of CUCM administration window. Click on Go button. Navigate to Tools -> Service Activation. To figure out which services should be activated, click on Help -> About this page. You can read more about services in a chapter Understanding Services from Cisco Unified Serviceablility 8.5.1 Administration Guide.
To save RAM and CPU resources I recommend to activate only minimum CM services. Other services can be activated later in case they are needed. These are the services that have to be activated in order to register Cisco IP phones with CUCM.
- Cisco CallManager
- Cisco Tftp
- Cisco IP Voice Media Streaming App
Once services are activated, power on a virtual machine with installed Cisco IP Communicator and plug Cisco IP phone 7961 to Catalyst 3550 switch. Switch back to Cisco Unified CM Administration page and navigate to Device -> Phone. Click on Find button. As we enabled Autoregistration feature in step 1 - Cisco Unified CM Configuration, both phones should automatically register with CUCM.
Picture 11 - Cisco IP Phones Registration
You should be able to place call from Cisco 7961 to Cisco IP Communicator and vice versa. Below are phone call statistic captured on CIPC. In this case, G.722 codec is used in both call directions and receiver and sender packets counters are increasing as the phone call remains active.
Picture 12 - Phone Call Statics