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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>It is set to yes…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Strangely it works –
only if I make the call from one direction one voice channel gets no voice transmitted…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>Von:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> asterisk-users-admin@lists.digium.com
[mailto:asterisk-users-admin@lists.digium.com] <b><span style='font-weight:
bold'>Im Auftrag von </span></b>Michael Shuler<br>
<b><span style='font-weight:bold'>Gesendet:</span></b> Dienstag, 6. April 2004
17:30<br>
<b><span style='font-weight:bold'>An:</span></b>
asterisk-users@lists.digium.com<br>
<b><span style='font-weight:bold'>Betreff:</span></b> RE: [Asterisk-Users] SIP
Proxy Problem (NAT Environment)</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Make sure you have nat=yes for the
sip.conf entry for SIPGATE.</span></font><o:p></o:p></p>
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<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'><!-- Converted from text/plain format -->----------------------------------------<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 </span></font><o:p></o:p></p>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
asterisk-users-admin@lists.digium.com
[mailto:asterisk-users-admin@lists.digium.com] <b><span style='font-weight:
bold'>On Behalf Of </span></b><st1:PersonName w:st="on">Markus Miertschink</st1:PersonName><br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, April 06, 2004
10:09 AM<br>
<b><span style='font-weight:bold'>To:</span></b>
asterisk-users@lists.digium.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Asterisk-Users] SIP
Proxy Problem (NAT Environment)</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;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><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Calling inbound from SipGate to the same phone works
perfectly. Both channels are perfectly “proxied”.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>The * is used as a proxy and registered the sipgate
account.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>This way works:</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>SIPGATE ---</span></font><font size=2 face=Wingdings><span
lang=EN-GB style='font-size:10.0pt;font-family:Wingdings'>à</span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>NAT(IP0)----</span></font><font
size=2 face=Wingdings><span lang=EN-GB style='font-size:10.0pt;font-family:
Wingdings'>à</span></font><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial'>Asterisk(IP1)-----</span></font><font
size=2 face=Wingdings><span lang=EN-GB style='font-size:10.0pt;font-family:
Wingdings'>à</span></font><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial'>IP-Phone(IP2)</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>This not (partially):</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>SIPGATE</span></font><font size=2 face=Wingdings><span
lang=EN-GB style='font-size:10.0pt;font-family:Wingdings'>ß</span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>--NAT(IP0)</span></font><font
size=2 face=Wingdings><span lang=EN-GB style='font-size:10.0pt;font-family:
Wingdings'>ß</span></font><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial'>---Asterisk(IP1)</span></font><font
size=2 face=Wingdings><span lang=EN-GB style='font-size:10.0pt;font-family:
Wingdings'>ß</span></font><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial'>---IP-Phone(IP2)</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;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><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;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><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I have no clue what to do anymore…</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Regards,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Markus</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>____________<br>
Virus checked by G DATA AntiVirusKit<br>
Version: AVK 14.0.635 from 31.03.2004<br>
Virus news: www.antiviruslab.com</span></font><o:p></o:p></p>
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