The IP Office system can use a number of TLS options.
Using IP Office Manager, load the server's configuration.
Select System.
Select LAN1 or LAN2 tab as appropriate and then select the VoIP tab.
The TLS operation is controlled by the H.323 Signalling over TLS field. Select the TLS mode required:
ADDITIONAL INFORMATION:
Disabled: Do not use TLS. Phones configured for TLS fallback to normal TCP connection.
Preferred: Use TLS with telephones configured for TLS but also allow normal TCP connections from other telephones.
Enforced: Require TLS. Refuse connections from telephones not configured for TLS. Note that when this option is selected, the Remote Call Signaling Port is fixed to 1300.
Click OK.
Save the configuration changes and allow the system to reboot.
