When digging further into the source code, I found in libs\sofia-sip\libsofia-sip-ua\tport\tport_type_tcp.c:

#if defined(SO_KEEPALIVE)
  setsockopt(socket, SOL_SOCKET, SO_KEEPALIVE, (void *)&val, sizeof val);
#endif
  val = 30;
#if defined(TCP_KEEPIDLE)
  setsockopt(socket, SOL_TCP, TCP_KEEPIDLE, (void *)&val, sizeof val);
#endif
#if defined(TCP_KEEPINTVL)
  setsockopt(socket, SOL_TCP, TCP_KEEPINTVL, (void *)&val, sizeof val);
#endif

The 30 seconds are hardcoded...

Now to turn off keepalive, I'd have to change the header file where SO_KEEPALIVE is set and to compile freeswitch?

Is there a more straightforward way?

br,

Can

2013/8/23 Master Can <a.daydreamer82@gmail.com>

I am not a C/C++ programmer, but I've downloaded the freeswitch source code, and did a search for "tcp_keepalive". I found the variable of type "int" and it is populated with the value tcp-keepalive from the XML file (in sofia.c). But apart from that the variable is not used at all?? Am I overseeing something?

2013/8/22 Master Can <a.daydreamer82@gmail.com>

Originally the option was not there - so I tried running Freeswitch without the option already. That didn't influence tcp keepalives though...

2013/8/21 Brian West <brian@freeswitch.org>

Remove the option.

On Aug 21, 2013, at 12:44 PM, Master Can <a.daydreamer82@gmail.com> wrote:

> Hello,
>
> I'm running freeswitch 1.2.10, with tls-only.
> I've tried 2 SIP Useragents now: PhonerLite and CSipSimple.
>
> My linux server shows me with netstat --timers that both useragents (both server sockets) use keepalive, with a value of 30 seconds.
>
> How can I disable keepalive on the TCP layer completely? My useragents take care of sending keepalive packets anyway, so Freeswitch does not need to do that. It's not mobile friendly, it's eating up battery power if the useragents keep receiving keepalive every 30 seconds.
>
> I've tried to set
> <param name="tcp-keepalive" value="disable"/>
> in internal.xml but to no avail. It didn't change a thing. Setting this to 60000 didn't change the output of netstat --timers either.
>
> Any advice?
>
> best regards,
> Can

> _______

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