Reliably Transmitting (no NAT) to 83.211.227.21:5060:
OPTIONS sip:voip.eutelia.it SIP/2.0
Via: SIP/2.0/UDP 67.41.4.26:5060;branch=z9hG4bK31ec1921;rport
From: "asterisk" <sip:asterisk@67.41.4.26>;tag=as322f05ad
To: <sip:voip.eutelia.it>
Contact: <sip:asterisk@67.41.4.26>
Call-ID: 38fd520e29a31be532e247ab048cf33a@67.41.4.26
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Fri, 02 Mar 2007 20:36:33 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Content-Length: 0


---
intranet*CLI>
<--- SIP read from 83.211.227.21:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 67.41.4.26:5060;branch=z9hG4bK31ec1921;rport=5060
From: "asterisk" <sip:asterisk@67.41.4.26>;tag=as322f05ad
To: <sip:voip.eutelia.it>;tag=d7cbdeb4f107ce82ed834cadd3d6dbb2.c24b
Call-ID: 38fd520e29a31be532e247ab048cf33a@67.41.4.26
CSeq: 102 OPTIONS
Accept: */*
Accept-Encoding:
Accept-Language: en
Support:
Server: SPS EUT GW 01 (0.9.6 (i386/linux))
Content-Length: 0
Warning: 392 83.211.227.21:5060 "Noisy feedback tells:  pid=7030 req_src_ip=67.41.4.26 req_src_port=5060 in_uri=sip:voip.eutelia.it out_uri=sip:voip.eutelia.it via_cnt==1"


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