The VPN client for IP phones allows remote users and telecommuters to have a physical phone that securely communicates with the cluster.
Implementing VPN support for Cisco IP phones requires multiple configurations to be completed both on the ASA/IOS device as well as the Unified Communications Manager. This recipe covers the Unified Communications Manager side of the configuration.
First we upload the VPN certificate from the IOS/ASA device by performing the following:
Navigate to the operating system administration page (
http://192.168.1.5/cmplatform
).Navigate to certificate management (Security | Certificate Management).
Click on Upload Certificate.
From the Certificate Name drop-down select Phone-VPN-trust:
Select the certificate.
Click on Upload File.
Next we must configure a VPN gateway corresponding to the certificate we just uploaded:
Navigate to the Unified CM administration page (
http://192.168.1.5/ccmadmin
).Navigate to the VPN Gateway...