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<tt>Hi Kamlesh,<br>
<br>
Different TO-tag in provisional replies is perfectly legal from
the SIP RFC3261 and the originator must accept that.<br>
<br>
Regards,<br>
</tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
OpenSIPS Summit, Amsterdam, May 2020
<a class="moz-txt-link-freetext" href="https://www.opensips.org/events/Summit-2020Amsterdam/">https://www.opensips.org/events/Summit-2020Amsterdam/</a>
</pre>
<div class="moz-cite-prefix">On 4/4/20 9:10 PM, Kamlesh . wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAEif1fFEnmZ8KszK8SoCMjS-cxzcq3hVBquVqCu5Lc65RSRFMA@mail.gmail.com">
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<div class="gmail_default"
style="font-family:verdana,sans-serif;color:#0b5394"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Dear All,</span></div>
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style="font-family:verdana,sans-serif;color:#0b5394"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">
</span></div>
<div class="gmail_default"
style="font-family:verdana,sans-serif;color:#0b5394"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><p id="gmail-docs-internal-guid-c2da5772-7fff-3059-9291-fcc49a4e3d19" style="font-family:"Times New Roman";font-size:16px;font-variant-numeric:normal;font-variant-east-asian:normal;line-height:1.38;margin-bottom:0pt;margin-top:0pt;white-space:normal" dir="ltr"><span style="background-color:transparent;font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">version: opensips 2.4.6 (x86_64/linux)</span></p><p style="font-family:"Times New Roman";font-size:16px;font-variant-numeric:normal;font-variant-east-asian:normal;line-height:1.38;margin-bottom:0pt;margin-top:0pt;white-space:normal" dir="ltr"><span style="background-color:transparent;font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">flags: STATS: On, DISABLE_NAGLE, USE_MCAST, SHM_MMAP, PKG_MALLOC, F_MALLOC, FAST_LOCK-ADAPTIVE_WAIT</span></p><p style="font-family:"Times New Roman";font-size:16px;font-variant-numeric:normal;font-variant-east-asian:normal;line-height:1.38;margin-bottom:0pt;margin-top:0pt;white-space:normal" dir="ltr"><span style="background-color:transparent;font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535</span></p><p style="font-family:"Times New Roman";font-size:16px;font-variant-numeric:normal;font-variant-east-asian:normal;line-height:1.38;margin-bottom:0pt;margin-top:0pt;white-space:normal" dir="ltr"><span style="background-color:transparent;font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">poll method support: poll, epoll, sigio_rt, select.</span></p><p style="font-family:"Times New Roman";font-size:16px;font-variant-numeric:normal;font-variant-east-asian:normal;line-height:1.38;margin-bottom:0pt;margin-top:0pt;white-space:normal" dir="ltr"><span style="background-color:transparent;font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">git revision: edef893c5</span></p><p style="font-family:"Times New Roman";font-size:16px;font-variant-numeric:normal;font-variant-east-asian:normal;line-height:1.38;margin-bottom:0pt;margin-top:0pt;white-space:normal" dir="ltr"><span style="background-color:transparent;font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">main.c compiled on 23:26:34 Dec 14 2019 with gcc 4.8.5</span></p>
</span></div>
<div class="gmail_default"
style="font-family:verdana,sans-serif;color:#0b5394"><span id="gmail-docs-internal-guid-323b7a87-7fff-a862-4652-47af456cc11d" style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">I have a problem with call forwarding on busy. The issue arises when I get an INCOMING call from the gateway and the extension(callee) responds with busy and callee is configured as an external number as forwarding on busy so the forwarded call sends to the same gateway and receives the 183. So in that case the gateway has two provisional responses one is 180 from callee and 183 from the gateway. It is obvious that both the responses have different to tag. So the second response is not accepted by the gateway. Any solution for the issue. Below is the call flow.</span><br
style="color:rgb(0,0,0);font-family:"Times New
Roman";font-size:16px;font-variant-numeric:normal;font-variant-east-asian:normal">
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<div class="gmail_default"
style="font-family:verdana,sans-serif;color:#0b5394"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">
</span></div>
<div class="gmail_default"
style="font-family:verdana,sans-serif;color:#0b5394"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><span id="gmail-docs-internal-guid-6fe0ac68-7fff-bdb0-f252-446a8bbf8824" style="background-color:transparent;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline"><span style="border:medium none currentcolor;display:inline-block;height:405px;overflow:hidden;width:502px"><img style="margin-left: 0px; margin-top: 0px;" src="https://lh4.googleusercontent.com/-_c_DM8EuTw0_ZD1MZYFoNWBxgWEHs37IMTJP5yoUTu4x89od3nMHZhIBTpPD6jHJhiNwdL57W6WHeZRgmWvdqljzbhv358R2Vgv-RQxQmXqIDYgIGqhibMrLrlbtYtZyOajd53_" moz-do-not-send="true" width="502" height="405"></span></span>
</span></div>
<div class="gmail_default"
style="font-family:verdana,sans-serif;color:#0b5394"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">
</span></div>
<div class="gmail_default"
style="font-family:verdana,sans-serif;color:#0b5394"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Regards,</span></div>
<div class="gmail_default"
style="font-family:verdana,sans-serif;color:#0b5394"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:11pt;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Kamlesh</span></div>
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</span></div>
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