[sr-dev] sr closes tcp connection before register expires

[Juha Heinanen]

ua sets up tcp connection to sr and registers.  expires parameter of
contact header is 3600 and tcp_persistent_flag was set before save() was
called.

after registering, ua sends some other requests and becomes idle 8
second later.  2 minutes 10 seconds after that, wireshark shows that sr
closes the tcp connection.

why is tcp connection closed?  it looks like a bug to me, but perhaps i
am missing something?

-- juha