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<DIV><FONT face=Calibri>Hi guys,</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>I'm having some troubles with a NAT client.</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>I have 2 phones (one NATed and one with valid
IP).</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>Making SIP calls between them, everything works fine,
the problem starts when I'm trying to receive a call from the PSTN, the NATed
client is giving me 401 Uanuthorized, but in the valid IP one, everything is
working.</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>I got this from my ngrep.</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>U *.*.*.*:5060 -> *.*.*.*:55225<BR>INVITE
sip:1630751038@*.*.*.*:5062 SIP/2.0.<BR>Record-Route:
<sip:*.*.*.*;lr=on;did=5bf.4529821>.<BR>Content-Type:application/sdp.<BR>To:sip:0151630751038@*.*.*.*.<BR>From:sip:1340101000@*.*.*.*;cpc=ordinary;tag=CC203030373433390080C9D0.<BR>Allow:INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY.<BR>Supported:100rel.<BR>Expires:120.<BR>Date:Mon,
07 Nov 2011 11:01:49
GMT.<BR>Call-ID:0200CC52308140000000367E@TB007439_VOIP1.TB007439.<BR>CSeq:1
INVITE.<BR>Max-Forwards:69.<BR>Timestamp:8440272.<BR>User-Agent:TB007439.<BR>Contact:sip:1340101000@*.*.*.*:5060.<BR>Via:
SIP/2.0/UDP *.*.*.*;branch=z9hG4bKcef9.0ca191b4.0.<BR>Via:SIP/2.0/UDP
*.*.*.*:5060;received=200.152.176.62;branch=z9hG4bKF6DBE15131EED68891B500A3455D133D;rport=5060.<BR>Content-Length:
203.<BR>.<BR>v=0.<BR>o=tb640 5 1 IN IP4 *.*.*.*.<BR>s=-.<BR>c=IN IP4
*.*.*.*.<BR>t=0 0.<BR>m=audio 61536 RTP/AVP 0 8 4 18 101 13.<BR>a=fmtp:4
bitrate=6300;annexa=no.<BR>a=rtpmap:101
telephone-event/8000.<BR>a=nortpproxy:yes.</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV><FONT face=Calibri>
<DIV><BR>U *.*.*.*:55225 -> *.*.*.*:5060<BR>SIP/2.0 401
Unauthorized.<BR>To:sip:0151630751038@*.*.*.*;tag=7f18aab466db6f88i2.<BR>From:sip:1340101000@*.*.*.*;cpc=ordinary;tag=CC203030373433390080C9D0.<BR>Call-ID:0200CC52308140000000367E@TB007439_VOIP1.TB007439.<BR>CSeq:1
INVITE.<BR>Via: SIP/2.0/UDP
*.*.*.*;branch=z9hG4bKcef9.0ca191b4.0.<BR>Via:SIP/2.0/UDP
*.*.*.*:5060;received=*.*.*.*;branch=z9hG4bKF6DBE15131EED68891B500A3455D133D;rport=5060.<BR>Record-Route:
<sip:*.*.*.*;lr=on;did=5bf.4529821>.<BR>Timestamp:8440272.<BR>Server:
Linksys/SPA942-5.1.15(a).<BR>WWW-Authenticate: Digest realm="*.*.*.*",
nonce="178352f8", qop="auth", algorithm=md5.<BR>Content-Length:
0.<BR>.<BR></DIV>
<DIV> </DIV>
<DIV>I have rtpproxy for NATed clients.</DIV>
<DIV> </DIV>
<DIV>Any clues?</DIV></FONT>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>Eng.º Rodrigo Ferreira<BR>Supervisor de
Telecomunicações<BR>Fone: (13) 4010-1037<BR>Cel: (13) 9615-7774<BR>VIPWay
Serviços de Telecomunicações LTDA</FONT></DIV></BODY></HTML>