Extension Mobility Cross Cluster (EMCC) – Configuration

What is Extension Mobility Cross Cluster?  Extension Mobility enables you to login within the cluster (intra-cluster) whereas Extension Mobility Cross Cluster (EMCC) enables you to login from a home cluster to a phone at visiting cluster (inter-cluster). This was introduced in 8.X Version or later.
Recently i have configured EMCC and i came across many issues but however the lab was successful. I couldn’t test the full functionality as i had Cisco IP Communicator which is not supported as per Cisco. I have tested the registration process from Home Cluster to Visiting Cluster successfully.
To start with the configuration, we need to ensure that we have a checklist ready so that the configuration is not missed out as the configuration is quite vast.

Pre-Requisites

• SFTP Application installed on Server/Laptop/PC
• 3 Services to be Up and Running which is essential for EMCC
• Configuring Phone Service
• Consolidate & Import Certificates
• Configuring the Common Device Configuration
• Insert/Update EMCC Template
• Configuring Cluster ID in both the Clusters
• Configuring Geolocation Filters
• Configuration EMCC Feature Configuration
• Configure EMCC Sip Trunk
• Configuring EMCC Intercluster Service Profile
• Configuring Remote Cluster with Unique ClusterID
• Login Process

1> Ensure that the following services are up and running.

• Cisco TFTP
• Cisco Bulk provisioning
• Cisco Extension Mobility

2> Ensure that Base Phones, User Device Profile & End Users have been created in the clusters.

• For End User Configuration > Ensure that “Enable Extension Mobility Cross Cluster” box is checked
• For Base Phones > Ensure that “Enable Extension Mobility” box is checked.

3>  Configure the Phone service for EMCC

• Go to Device > Device Settings > Phone Services
• Add a New Service
• Enter Service Name, ASCII Server Name, Service Description
• Service URL > http://X.X.X.X:8080/emapp/EMAppServlet?device=#DEVICENAME#&EMCC=#EMCC#
• Service Category > XML Service
• Service Type > Standard IP Phone Service
• Check mark Enable
• Check Mark Enterprise Subscription (Optional)

4> Consolidate & Import Certificates

• Login to https://X.X.X.X:8443/cmplatform (Assume this to be your ClusterA)
• Go to Security > Bulk Certificate Management > Enter the SFTP Server IP Address and Credentials and Click on Save
• Click on Export > Choose All from the drop-down under Certificate type and Click on Export
• Login to https://X.X.X.X:8443/cmplatform (Assume this to be your ClusterB)
• Go to Security > Bulk Certificate Management > Enter the SFTP Server IP Address and Credentials and Click on Save
• Click on Export > Choose All from the drop-down under Certificate type and Click on Export
• Refresh ClusterB Bulk Certificate Management and you will be able to see Consolidate button
• Click on Export > Choose All from the drop-down under Certificate type and Click on Consolidate
• Now click on Import > Choose All from the drop-down under Certificate type and Click on Import on ClusterA
• Now click on Import > Choose All from the drop-down under Certificate type and Click on Import on ClusterB

5> Configuring the Common Device Configuration

• Go to Device > Device Settings > Common Device Configuration
• Click on Add New
• Enter Name, Softkey Template and Click on Save

6> Insert/Update EMCC Template

• Go to Bulk Administration Tool > EMCC > EMCC Template
• Enter a Template Name & Device Pool
• Select from Drop Down Menu SIP Profile & Common Device Configuration and click on Save
• Go to Bulk Administration Tool > EMCC > Insert/Update EMCC
• Radio Check > Update EMCC Devices and Select EMCC Template from Drop Down Menu
• Radio Check > Run Immediately and click on Submit
• Check the Job Scheduler to verify the the processing job has been completed.
• Go to Bulk Administration Tool > EMCC > Insert/Update EMCC
• Radio Check > Insert EMCC Devices
• Enter the number of EMCC Devices to be added >
• Radio Check > Run Immediately
• Check the Job Scheduler to verify the the processing job has been completed.
• Repeat the same process in ClusterB as well

7> Configuring Cluster ID in both the Clusters

• Go to System > Enterprise Parameters > Cluster ID (Ensure that ClusterID are unique in both the Clusters)

8> Configuring Geolocation Filters

• Go to System > Geolocation Filter > Add New
• Enter a Name and Description
• Check Mark – Country using the two-letter abbreviation
• Check Mark – State, Region, or Province (A1)
• Check Mark  – City or Township (A3)
• Click on Save
• Repeat the same process in ClusterB

9> Configuration EMCC Feature Configuration

• Go to Advanced Features > EMCC > EMCC Feature Configuration
• Default TFTP Server for EMCC Login Device > x.x.x.x
• EMCC Geolocation Filter > Select the Filter from Drop Down
• Default Server For Remote Cluster Update > x.x.x.x
• Repeat the same process in ClusterB

10> Configure EMCC Sip Trunk

• Go to Device > Trunk > Add New
• Trunk Type > SIP Trunk
• Device Protocol > SIP
• Trunk Service Type > Extension Mobility Cross Cluster
• Click Next
• Enter Device Name, Description, Device Pool, Location, SIP Trunk Security Profile & SIP Profile
• Check Mark > Send Geolocation Filter
• Click on Save,
• Click on Apply
• Click on Reset
• Repeat the same process in ClusterB

11> Configuring EMCC Intercluster Service Profile

• Go to Advanced Features > EMCC > EMCC Inter-cluster Service Profile
• Check Mark > EMCC
• Check Mark > PSTN
• Check Mark > RSVPAgent
• Repeat the same process in ClusterB

12> Configuring Remote Cluster with Unique ClusterID

• Go to Advanced Features > EMCC > EMCC Inter-cluster Service Profile
• Click on Related Links > Drop Down and Select Remote Cluster and Click Go
• Click on Add New
• Cluster ID > Enter the Remote Unique Cluster ID which is configured
• Fully Qualified Name > Enter the IP Address of the Remote Cluster
• Click on Save
• Check Mark Enabled All Services  and click on Update Remote Cluster Now.
• Click on Save
• Repeat the same process in ClusterB

13> Ensure your 79XX IP Phone is registered to the Cluster and make sure that the Phone supports EMCC functionality.

• Press Services
• Press EMCC
• If your phone is registered to ClusterA then type the user id and password configured for End User in ClusterB and check if you are successfully logged in.

Originally posted 2014-06-16 18:57:22. Published by Team UC Collabing

Avinash Karnani

I am working in an IT company and having 10+ years of experience into Cisco IP Telephony and Contact Center. I have worked on products like CUCM, CUC, UCCX, CME/CUE, IM&P, Voice Gateways, VG224, Gatekeepers, Attendant Console, Expressway, Mediasense, Asterisk etc. I am not an expert but i keep exploring whenever and wherever i can and share whatever i know. You can visit my LinkedIn profile by clicking on the icon below.

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