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Old 07-17-2014, 03:21 PM
skatzi skatzi is offline
Join Date: Jun 2014
Posts: 4
skatzi has 10 reputation points
Default SIP Trunk - outbound problems

Dear Forum!

I have a problem with a SIP-Trunk on outbound side. The registration (which is mandatory) is sucessful, but when i start a call, there comes a packet "407 - Proxy Authentication required" after the INVITE ans TRYING packet.

My ITSP tells me that my IPO obviously doesn't send the authentication back (Ack + 2nd invite), but I have no plan, where I can this configure. I already tried several configurations for hours without success.

Does anyone have some ideas?

Sip-Protocol is here:

SIP Rx: UDP 193.xx.xx.xx:5060 -> 192.1xx.1xx.2xx:5084
                    SIP/2.0 407 Proxy Authentication Required
                    Via: SIP/2.0/UDP;branch=z9hG4bK3037691a0ffced849461c343b7fa418c;rport=5084
                    From: "07xxxxxxxxx" <sip:07xxxxxxxxxxx@voip01.pr-xxxxxxxxxxxx-xx>;tag=695ed78eeb281dac
                    To: <sip:066XXXXXXXX@voip01.pxxxxxxxxxxxxxxx.xx>;tag=l4iPH*rqgiuxhEs
                    Call-ID: ab815a605bd7fc6e6554f69f738dddf2
                    CSeq: 1236244530 INVITE
                    Max-Forwards: 69
                    Supported: timer
                    Record-Route: <sip:193.XX.XX.XX;lr;ftag=695ed78eeb281dac;x-nt-gid=PG04>
                    User-Agent: IP Office build 941~91.xx.xx.xx~91.xx.xxx.xx
                    Authorization: Digest username="077xxxxx1",realm="voip01.pr-xxxxxxxxx.xx",nonce="dd7213b097a58b96ca4bb5686bb14fe2",uri="sip:06xxxxxx@voip01.pr-xxxxxxxxxx.xx",response="45e9dc6b039f4ca7c4a110bc03ee9016",algorithm=MD5,cnonce="2a345986fa506b759d
                    P-Charging-Vector: icid-value=ab815a605bd7fc6e6554f69f738dddf2;icid-generated-at=c5sbcp04
                    X-NAT-IP: 91.1XXX.XXX.XX
                    X-NAT-PORT: 5084
Many thanks!

BR Stefan
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Old 08-12-2014, 12:32 PM
zakabog zakabog is offline
Join Date: Aug 2014
Posts: 300
zakabog has 25 to 49 reputation pointszakabog has 25 to 49 reputation pointszakabog has 25 to 49 reputation points

In your SIP URI for the line, do you have the credentials selected under the "Registration:" drop down menu?
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Old 09-02-2020, 06:01 AM
eduar8 eduar8 is offline
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Join Date: Aug 2020
Posts: 1
eduar8 has 10 reputation points

I am facing the same problem, does anyone have a tip or solution?
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