Setting line type default to 5061/TLS

Feb 1, 2017
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Where can I change the line provisioning globally so that 5061/TLS is used?
In Default Settings we have "line_sip_port", that can easily be set to 5061.
But line_sip_transport is "tcp" and looking at account.X.sip_server.Y.transport_type, the valid values are 0 - 3, so how do these interact?
 
set line_sip_transport to tls in default settings.

The provisioning templates for the various brands/models translate tcp/tls/udp/etc to the correct format the device is expecting.