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

[Klaus Darilion]

Iñaki Baz Castillo schrieb:
> 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?

Looks like this is a limitation of the natpinging. I would think it 
should work with TCP/TLS too (useful to handle clients which close the 
TCP connection after some time).

klaus