I am using Create Dialog with "Pp" as parameter but I have one doubt, what if the either side of Opensips is another proxy or SBC which has following code at the start (Before loose route or topology hiding check)
if(((is_method("NOTIFY") && $hdr(Event) =~ "keep-alive") || is_method("OPTIONS"))) { sl_send_reply("200", "Alive"); exit; } Then i will get a 200 OK for every option message whether it is generated by dialog module or drouting module as gateway ping?...So I fear if in dialog ping is a reliable way to check if call is alive?
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