/
pstn_dest.cfg
154 lines (130 loc) · 4.82 KB
/
pstn_dest.cfg
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route[pstn_forward]{
$avp(position)=1;
$avp(dstlist_id)=0;
route(get_carriers);
if($avp(failovers)==$null){
$avp(sip_code)="500";
$avp(sip_reason)="No More Carriers";
route(SET_CDR);
acc_db_request("No More Carriers", "failed_calls");
xlog("L_INFO","No More Carriers");
sl_send_reply("500","No More Carriers");
exit;
}
$avp(max_attempts)=$var(max_attempts);
xlog("L_INFO","The max call attempts are $avp(max_attempts)");
$avp(call_attempts)=0;
route(carrier_routing);
exit;
}
route[get_carriers]{
redis_cmd("redis","evalsha ed298d3856ca8aeadde716def3ac0d9a72059740 0 $avp(routeId) $avp(dstlist_id) $avp(position) $avp(called_number)","r");
if($redis(r=>value[0])!=0){
$avp(failovers)=$redis(r=>size);
$avp(carrier)=$redis(r=>value[0]);
$var(c)=$avp(failovers)-1;
while($var(c)!=-1){
$(avp(carrier)[$var(c)]) = $redis(r=>value[$var(c)]);
#--xlog("L_INFO","Carrier $var(c) $redis(r=>value[$var(c)])");
$var(c)=$var(c)-1;
}
}
}
route[carrier_routing]{
xlog("L_INFO","call variables $avp(call_attempts) : $avp(max_attempts) ");
if($avp(call_attempts)<$avp(max_attempts)){
if($avp(call_attempts)<$avp(failovers)){
$avp(carrier_id)=$(avp(carrier)[$avp(call_attempts)]{s.select,0,:});
$avp(dst_carrier_rate)=$(avp(carrier)[$avp(call_attempts)]{s.select,1,:});
$avp(carrier_prefix)=$(avp(carrier)[$avp(call_attempts)]{s.select,2,:});
xlog("L_INFO", "carrier_routing: carrier Id is $avp(carrier_id) ; dst_carrier_rate : $avp(dst_carrier_rate) ; carrier_prefix: $avp(carrier_prefix) Attempt no : $avp(call_attempts)");
route(carrier_fetch_ip);
route(carrier_relay);
}
}else{
xlog("L_INFO","MAX Attempts reached");
}
exit;
}
route[carrier_fetch_ip]{
redis_cmd("redis","SRANDMEMBER carrierOutIps:$avp(carrier_id)","r");
$avp(domain_port)=$redis(r=>value);
if(is_avp_set("$avp(domain_port)")){
$avp(domain)=$(avp(domain_port){s.select,0,:});
$avp(port)=$(avp(domain_port){s.select,1,:});
}else{
$avp(call_attempts)=$avp(call_attempts)+1;
//xlog("L_INFO","INC call_attempts $avp(call_attempts)");
route(carrier_routing);
}
}
route[carrier_relay]{
route(rtp_engine);
$rd=$avp(domain);
$rp=$avp(port);
t_on_failure("carrier_failover");
t_on_reply("carrier_reply");
$var(duri) = "sip:"+$rU+"@"+$rd+":"+$rp;
$du = $var(duri);
xlog("L_INFO","relayed $avp(domain):$avp(port) $avp(called_number) $var(duri) $du");
if (!t_relay()) {
sl_reply_error();
}
exit;
}
failure_route[carrier_failover]{
if(t_is_canceled() || t_check_status("487") || t_check_status("404") ) {
//Incase of a cancelled / Invalid call Attempt
xlog("L_INFO","Incase of a cancelled / Invalid call Attempt $rm");
setflag(CANCELLED);
$avp(sip_code)=$T_reply_code;
$avp(sip_reason)=$T_reply_reason;
route(SET_CDR);
route(rtp_engine);
acc_db_request("Some comment", "failed_calls");
exit;
}
if(isflagset(RINGING)){
//Incase a call fails after a 18X provisional response || t_check_status("486")
xlog("L_INFO","The call had already received a 180 0r 183 and then failed");
$avp(sip_code)=$T_reply_code;
$avp(sip_reason)=$T_reply_reason;
route(SET_CDR);
acc_db_request("FAILED AFTER SESSION PROGRESS", "failed_calls");
setflag(CANCELLED);
route(rtp_engine);
resetflag(RINGING);
exit;
}
//Incase a call fails otherwise
$avp(sip_code)=$T_reply_code;
$avp(sip_reason)=$T_reply_reason;
route(SET_CDR);
acc_db_request("Some comment", "failed_sessions");
xlog("L_INFO","InRoute carrier_failover route $avp(call_attempts) ; $T_reply_code");
$avp(call_attempts)=$avp(call_attempts)+1;
route(carrier_routing);
exit;
}
onreply_route[carrier_reply]{
if(status == "100") {
$avp(inv_timer) = 17;
//xlog("L_INFO","100 trying");
}
if(status == "180" || status == "183") {
//xlog("L_INFO","ringing");
$avp(inv_timer) = 45;
//do not fail-over call now as we have a provisional response
setflag(RINGING);
}
if(status == "200") {
if(!isflagset(ANSWERED)){
xlog("L_INFO","received 200ok in dst_carrier route $ci answer_timestamp : $TS");
setflag(ANSWERED);
$avp(sip_code)=$T_reply_code;
$avp(sip_reason)=$T_reply_reason;
route(SET_CDR);
route(rtp_engine);
}
}
}