[Serdev] tcp/tls for lcr module

[Juha Heinanen]

Klaus Darilion writes:

 > what do mean with security? I thought it is implicit in transport: UDP, 
 > TCP, TLS (and maybe DTLS some day)

tls is not transport protocol. according to rfc3261, tls is run on top
of A reliable transport protocol, e.g., tcp or sctp, default being tcp.

i'm going to rewrite lcr gw stuff so that i'll completely re-create
r-uri based on the existing user part and the stuff from database:
security, gw ip address, port, transport.  if security = y, uri scheme
will be sips:, otherwise sip:.

-- juha