Enterprise IP Phone Using the Advanced Phone Functions- 53 -If you make a call based on TLS and SRTP (Set the transport as TLS and the SRTP asOn), the IP phone UI will display the connecting and ring back interface. If the receptionalso set the transport as TLS, then IP Phone UI will display the icon on both side.Go to Account->Basic, choose Transport option, in the pull-down menu, you can choosethe TLS option, then click the Confirm button to save the change.DNS-SRVIf the SIP server cannot be used, the phone will be connected on the server which isavailable.To set DNS-SRV via web interface:Go to Account->Basic, choose Transport option, in the pull-down menu, you can choosethe DNS-SRV option, and then click the Confirm button to save the change.
