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Hi. I found the error cause. But I still don't know why I have such issue.</div>
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When I use my Internet Link (WIFI in my home office), the SIP register message is sent correctly. Like this:<br>
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Session Initiation Protocol (REGISTER)
<div> Request-Line: REGISTER sip:54.233.189.46:5060;transport=UDP SIP/2.0</div>
<div> Method: REGISTER</div>
<div> Request-URI: sip:54.233.189.46:5060;transport=UDP</div>
<div> [Resent Packet: False]</div>
<div> Message Header</div>
<div> Via: SIP/2.0/UDP 192.168.1.103:5060;branch=z9hG4bK-524287-1---6dbfa766cffddeee;rport</div>
<div> Max-Forwards: 70</div>
<div> Contact: <sip:55555@192.168.1.103:5060;rinstance=1afa98b2b6d17a34;transport=UDP></div>
<div> To: <sip:55555@54.233.189.46:5060>;transport=UDP></div>
<div> From: <sip:55555@54.233.189.46:5060;transport=UDP>;tag=98bfc34c</div>
<div> Call-ID: H1E0jkwiMniiyT5az1BT7g..</div>
<div> CSeq: 1 REGISTER</div>
<div> Expires: 60</div>
<div> Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE</div>
<div> User-Agent: Zoiper v2.10.18.1-mod</div>
<div> Allow-Events: presence, kpml, talk</div>
Content-Length: 0<br>
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Opensips got the message above.</div>
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However, when I use the GSM mobile network (from VIVO) , some service changes the content of the SIP Register message. Like this:<br>
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Session Initiation Protocol (REGISTER)
<div> Request-Line: REGISTER sip:<b>[64:ff9b::36e9:bd2e]</b>:5060;transport=UDP SIP/2.0</div>
<div> Method: REGISTER</div>
<div> Request-URI: sip:<b>[64:ff9b::36e9:bd2e]</b>:5060;transport=UDP</div>
<div> [Resent Packet: False]</div>
<div> Message Header</div>
<div> Via: SIP/2.0/UDP <b>[64:ff9b::c000:4]</b>;branch=z9hG4bK-524287-1---0a8189adf6c3449a</div>
<div> Max-Forwards: 70</div>
<div> Contact: <sip:55555@<b>[64:ff9b::c000:4]</b>:5060;transport=UDP;rinstance=ffaac43f13178e89></div>
<div> To: <sip:55555@<b>[64:ff9b::36e9:bd2e]</b>:5060></div>
<div> From: <sip:55555@<b>[64:ff9b::36e9:bd2e]</b>:5060>;tag=f19aea4d</div>
<div> Call-ID: VICBinZsDk5_ZhpHGd__CQ..</div>
<div> CSeq: 1 REGISTER</div>
<div> Expires: 60</div>
<div> Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE</div>
<div> User-Agent: Zoiper v2.10.18.1-mod</div>
<div> Allow-Events: presence, kpml, talk</div>
Content-Length: 0<br>
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That is why Opensips returns error 500. I guess some service changed IPv4 to something IPv6.</div>
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Could it be caused by the GSM operator (VIVO) ? </div>
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What should I investigage to solve this problem?<br>
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Any hint will be very helpful !<br>
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Thanks alot.</div>
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<div class="PlainText">RODRIGO PIMENTA CARVALHO<br>
Inatel Competence Center<br>
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Ph: +55 35 3471 9200 RAMAL: 979<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>De:</b> Users <users-bounces@lists.opensips.org> em nome de Daniel Zanutti <daniel.zanutti@gmail.com><br>
<b>Enviado:</b> quinta-feira, 12 de maio de 2022 11:57<br>
<b>Para:</b> OpenSIPS users mailling list <users@lists.opensips.org><br>
<b>Assunto:</b> Re: [OpenSIPS-Users] Question about error 500 only via WIFI</font>
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<div dir="ltr">Olá Rodrigo, tudo bem? Saudações de São Paulo!
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<div>Opensips doesn't differentiate the network, it will look just to the sip packet. I recommend you sniff through your packets and check what's different. Probably there's somenthing on opensips log you didn't get yet, recommend you take a look there first
btw.</div>
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<div>About push, I think you're enable push notifications on your device, take a look: <a href="https://www.zoiper.com/en/support/home/article/205/Zoiper%20Push%20Proxy" target="_blank">https://www.zoiper.com/en/support/home/article/205/Zoiper%20Push%20Proxy</a></div>
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<div>Regards</div>
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<div dir="ltr" class="x_gmail_attr">On Wed, May 11, 2022 at 4:13 PM Rodrigo Pimenta Carvalho <<a href="mailto:pimenta@inatel.br" target="_blank">pimenta@inatel.br</a>> wrote:<br>
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Hi.<br>
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My SIP proxy is an OpenSIPS version 2.4.7. It was 'off' for a while and today I turned it on again for some tests.</div>
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I usually use my home office local WIFI to connect my softphones to the network and it can be all connected (online) to this SIP proxy.</div>
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However, if I use the mobile network (LTE/4G) to connect the softphones to the SIP proxy, the OpenSIP returns an error 500. That is: "SIP/2.0 500 Server error occurred (7/TM)".<br>
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One of the softphones (Zoiper) allows me to use a kind of "proxy PUSH". If I use it, the problem is solved even while using the mobile network.<br>
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What is a proxy PUSH? Why OpenSIPs return error in a case, but not in the other one?</div>
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What could I do to avoid using a 'proxy PUSH'?</div>
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Local WIFI and mobile network come from different carriers.<br>
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Any hint will be very helpful!</div>
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Best regards.</div>
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