Does nbody know about this warning my X-PRO receives?
 
Warning: 392 1.2.3.4:5060 "Noisy feedback tells:  pid=4687 req_src_ip=3.4.5.6 req_src_port=60033 in_uri=sip:3000@1.2.3.4 out_uri=sip:3000@3.4.5.6:2734;user=phone via_cnt==1"
 
Vitor Brasileiro.