Can not change Proxy Server Transport value.

[Dtan]

The Proxy Server Transport in  ITSP SIP page. I have unckecked and trying to get a value from the drop down list.

The drop down list is blank.

Firmware problem ?

[RonR]

Service Providers -> ITSP Profile x -> SIP -> ProxyServerTransport offers UDP/TCP/TLS as options.

Are you looking in the OBi itself (browse to the IP address returned by dialing ***1)?