Description

Call comes from DID Trunk and UAC module is used as per some fixed mapping in DB so we use that user to make call Asterisk through UAC as shown below.

$var(original_ru) = $rU;
if (uac_reg_request_to("$avp(auser)", 1)) {

			$var(status) = uac_reg_status("$rU"); 
			$rU = $var(original_ru) ;
t_on_failure("REMOTE_AUTH");
}


failure_route[REMOTE_AUTH] {
    if (t_check_status("401|407")) {
	    xlogl("L_INFO", " Remote asked for authentication");
    	t_drop_replies();
		# - remove preloaded route headers
		remove_hf("Route");		
		record_route();
		$avp(authed) = 1;
		
		# Drop replies so that they are not sent back to the UAC
		uac_auth();
		route(RELAY);
    }
}

in all this activity Contact Header also replaced by UAC_AUTH so Replies from Asterisk reaches to Kamailio but does not relay back to DID Trunk.
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Troubleshooting

Reproduction

Debugging Data

(paste your debugging data here)

Log Messages

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SIP Traffic

(paste your sip traffic here)

Possible Solutions

Additional Information

• Kamailio Version - output of kamailio -v

(paste your output here)

• Operating System:

(paste your output here)

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