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<DIV><SPAN class=296432815-06042004><FONT face=Arial color=#0000ff size=2>Make
sure you have nat=yes for the sip.conf entry for SIPGATE.</FONT></SPAN></DIV>
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<P><FONT size=2>----------------------------------------<BR><BR>Michael Shuler,
C.E.O.<BR>BitWise Systems, Inc.<BR>1301 W. Pioneer Parkway<BR>Peoria, IL
61615<BR>Office: (217) 585-0357<BR>Cell: (309) 657-6365<BR>Fax: (309)
213-3500<BR>E-Mail: mike@bwsys.net<BR>Customer Service: (877) 976-0711
</FONT></P>
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<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
asterisk-users-admin@lists.digium.com
[mailto:asterisk-users-admin@lists.digium.com] <B>On Behalf Of </B>Markus
Miertschink<BR><B>Sent:</B> Tuesday, April 06, 2004 10:09 AM<BR><B>To:</B>
asterisk-users@lists.digium.com<BR><B>Subject:</B> [Asterisk-Users] SIP Proxy
Problem (NAT Environment)<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have the problem calling from a
NAT firewalled SIP Phone to sipgate.de. Somehow it is working. The connection
works. Everything seems to be fine. I could talk to the external phone. But:
the external voice gets not transmitted to my internal (calling)
phone.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Calling inbound from SipGate to
the same phone works perfectly. Both channels are perfectly
“proxied”.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The * is used as a proxy and
registered the sipgate account.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">This way works:</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">SIPGATE ---</SPAN></FONT><FONT
face=Wingdings size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Wingdings">à</SPAN></FONT><FONT
face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">NAT(IP0)----</SPAN></FONT><FONT
face=Wingdings size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Wingdings">à</SPAN></FONT><FONT
face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Asterisk(IP1)-----</SPAN></FONT><FONT
face=Wingdings size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Wingdings">à</SPAN></FONT><FONT
face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">IP-Phone(IP2)</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">This not
(partially):</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">SIPGATE</SPAN></FONT><FONT
face=Wingdings size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Wingdings">ß</SPAN></FONT><FONT
face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">--NAT(IP0)</SPAN></FONT><FONT
face=Wingdings size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Wingdings">ß</SPAN></FONT><FONT
face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">---Asterisk(IP1)</SPAN></FONT><FONT
face=Wingdings size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Wingdings">ß</SPAN></FONT><FONT
face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">---IP-Phone(IP2)</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">All ports are mapped to the
address of IP1. If I look into the tcpdump log it seems that all ports used
there are matching my NAT settings. Asterisk is happy. No
problems.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I only run into immediate abortion
of the call if Asterisk is configured using outbound_address with the ip of
IP0.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have no clue what to do
anymore…</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Regards,</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Markus</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<P><FONT face=Arial size=2>____________<BR>Virus checked by G DATA
AntiVirusKit<BR>Version: AVK 14.0.635 from 31.03.2004<BR>Virus news:
www.antiviruslab.com<BR></FONT></P></BLOCKQUOTE></BODY></HTML>