Re: [sr-dev] [kamailio/kamailio] nathelper always sends SIP pings when ping_nated_only is set to 0 (#1587)

I ended up by using the combination of ping_nated_only being 0 and setting sipping_flag, assuming that if one wants to ping all contacts with 4-bytes, it doesn't need to set sipping_flag parameter at all.

If anyone has another suggestion, just write here.

An option that I am somehow considering is to add a new one or rename this parameter for controlling the ping mode, like `ping_mode`: 0 - use message/branch flags to decide, 1 - all contacts with 4 bytes, 2 - all contacts with sip requests

Testing and reporting the behaviour with the above patch is appreciated. If all ok, then I will backport.