[Sofia-sip-devel] adding "Keep" in SIP header while register request

[Dhanavel P <esp...@gm...>]

Hi All,
     I am trying to send SIP REGISTER request with keep option in SIP
Header.  But i couldn't able to add KEEP in SIP header.

Am trying to use int
sip_via_add_param<http://sofia-sip.sourceforge.net/refdocs/sip/group__sip__via.html#ga6bc2fb072f7edf24d3d29e7d0202fc0b>(
su_home_t<http://sofia-sip.sourceforge.net/refdocs/su/su__alloc_8h.html#aee7ffa371c0a9dae3f4b5b383e33692b>*home,
sip_via_t<http://sofia-sip.sourceforge.net/refdocs/sip/structsip__via__s.html>*v,
char const *param) to add "keep" in header field. after nua_create.
nua_t* nua_create()
But i was not able to add. It will be really helpful for me if i know the
exact function which will add string to SIP Header.

Please let me know how to append the KEEP in SIP header field.

My Scenario :
   I want to enable KEEP-ALIVE  on my client based on response(200 OK)from
server. For that i want to send SIP request with enabling KEEP.

Regards,
Dhanavel