Install Telephony Server:
Do NOT enable unless this feature is included in your ICE product license. If enabled, an 'Assigned node ### for telephony' notification appears along with the following fields:

Network Interface:
Must be populated. Default value: eth0

SIP Ports Specification:
When enabled, use the fields to set the ports used by SIP for TCP, UDP, and TLS in both ipv4 & ipv6 modes.

Enable TLS with Telephony:
If enabled, the following fields appear:

Telephony Certificate Private Key:
Required.

Telephony Root Certificate:
Required.

Apply:
Select to apply these values and proceed to the next screen.