[SR-Users] Multiple aliases in the Request Message

Hello, what is the proper way for kamailio nathelper module to handle multiple aliases in the request . For example We have ACK message that looped in the kamailio because is not forward to user phone: ACK sip:xxxxxx@10.10.10.32:38416;alias=192.168.129.135~5060~1;alias=192.168.205.32~38416~1 SIP/2.0 Via: SIP/2.0/UDP 192.168.146.174:46248 ;branch=z9hG4bK-524287-1---5b14eec905adf6ce Max-Forwards: 70 Route: <sip:mo@192.168.129.133;lr=on;ftag=c7d62d68;did=8a1.bcf2;rm=8> Route: <sip:mo@192.168.129.135;lr=on;ftag=c7d62d68;did=8a1.121> Route: <sip:mt@192.168.129.135;lr=on;ftag=c7d62d68;did=8a1.221> Route: <sip:mt@192.168.129.133;lr=on;ftag=c7d62d68;did=8a1.ccf2;rm=7> Contact: <sip:yyyyy@10.153.146.174:46248;transport=UDP> To: <sip:xxxxxx@domain.net;transport=UDP>;tag=dd9aaf1c From: <sip:yyyyy@domain.net;transport=UDP>;tag=c7d62d68 Call-ID: 5Zogf8chhpYlQRdpaZM4CA.. CSeq: 2 ACK User-Agent: Softphone Content-Length: 0