[OpenSER-Users] Is there OPTIONS keepalive in TCP?

[Iñaki Baz Castillo]

Hi, I register a X-Lite (TCP client) and a Twinkle (UDP client) behind NAT. I 
dissable STUN, ICE, keepalive, "discover external address", etc... in both.

They send a REGISTER to my OpenSer with public IP so I enable OPTIONS pinging 
ifor both (I confirm that "location" table has the same cflags for the you 
entries and so, all is correct.

But I just see a periodical SIP OPTIONS by UDP for Twinkle. Are they exist in 
case of TCP?

-- 
Iñaki Baz Castillo