<div dir="ltr"><div>Hi</div><div><br></div><div>I agree but that's not possible. This is the NATIONAL carrier, like a Vodafone in the UK.<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, May 14, 2019 at 4:10 PM Daniel Grotti <<a href="mailto:dgrotti@sipwise.com">dgrotti@sipwise.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
you should better change your carrier then in this case.<br>
Nobody is using BYE to cancel early state calls in SIP.<br>
<br>
<br>
Cheers,<br>
<br>
<br>
Daniel Grotti<br>
<br>
Head of Customer Support Sipwise GmbH<br>
e: <a href="mailto:dgrotti@sipwise.com" target="_blank">dgrotti@sipwise.com</a> Europaring F15<br>
t: +43(0)130120332 A-2345 Brunn Am Gebirge<br>
w: <a href="http://www.sipwise.com" rel="noreferrer" target="_blank">www.sipwise.com</a> FN: 305595f FG: LG Wiener Neustadt<br>
<br>
On 5/14/19 4:02 PM, qabane me wrote:<br>
> Hi<br>
> <br>
> The carrier in question is not very helpful and while we are still <br>
> trying to get them to change this, for the moment they are refusing, citing:<br>
> <br>
> AS per RFC 5407 ( The caller MAY send a BYE in the Early state, even though this behavior is not recommended. A BYE sent in the Early state terminates the early dialog using a specific To tag)<br>
> <br>
> This is causing phones to keep on ringing upon the bye. If they really <br>
> will not change their behaviour, how do I change ours so that we don't <br>
> have that issue?<br>
> <br>
> <br>
> On Fri, May 10, 2019 at 4:46 PM qabane me <<a href="mailto:qabaneitsolutions@gmail.com" target="_blank">qabaneitsolutions@gmail.com</a> <br>
> <mailto:<a href="mailto:qabaneitsolutions@gmail.com" target="_blank">qabaneitsolutions@gmail.com</a>>> wrote:<br>
> <br>
> Thanks Daniel!<br>
> <br>
> On Fri, May 10, 2019 at 4:16 PM Daniel Grotti <<a href="mailto:dgrotti@sipwise.com" target="_blank">dgrotti@sipwise.com</a><br>
> <mailto:<a href="mailto:dgrotti@sipwise.com" target="_blank">dgrotti@sipwise.com</a>>> wrote:<br>
> <br>
> Hi,<br>
> in general chapter 15 of RF3261, here an extract:<br>
> <br>
> <br>
> "The notion of "hanging up" is not well defined within SIP. It is<br>
> specific to a particular, albeit common, user interface.<br>
> Typically, when the user hangs up, it indicates a desire to<br>
> terminate the attempt to establish a session, and to<br>
> terminate any<br>
> sessions already created. For the caller's UA, this<br>
> would imply a<br>
> CANCEL request if the initial INVITE has not generated a<br>
> final<br>
> response, and a BYE to all confirmed dialogs after a final<br>
> response. For the callee's UA, it would typically imply<br>
> a BYE;<br>
> presumably, when the user picked up the phone, a 2xx was<br>
> generated, and so hanging up would result in a BYE after<br>
> the ACK<br>
> is received."<br>
> <br>
> <br>
> <br>
> <br>
> <br>
> <br>
> <br>
> Daniel Grotti<br>
> <br>
> Head of Customer Support Sipwise GmbH<br>
> e: <a href="mailto:dgrotti@sipwise.com" target="_blank">dgrotti@sipwise.com</a> <mailto:<a href="mailto:dgrotti@sipwise.com" target="_blank">dgrotti@sipwise.com</a>> <br>
> Europaring F15<br>
> t: +43(0)130120332 A-2345 Brunn Am Gebirge<br>
> w: <a href="http://www.sipwise.com" rel="noreferrer" target="_blank">www.sipwise.com</a> <<a href="http://www.sipwise.com" rel="noreferrer" target="_blank">http://www.sipwise.com</a>> FN: 305595f FG:<br>
> LG Wiener Neustadt<br>
> <br>
> On 5/10/19 3:34 PM, qabane me wrote:<br>
> > Hi<br>
> ><br>
> > On of our interconnects sends calls to us. When the caller<br>
> cancels the<br>
> > call before a session is established, they send us a BYE.<br>
> That should be<br>
> > a CANCEL as far as I know. This is causing issues with the<br>
> callee's<br>
> > phone continuing to ring. I am trying to argue with them but<br>
> they are<br>
> > saying it's allowed. I am trying to check the RFCs but am not<br>
> finding<br>
> > ammunition. Does any one have a link to show that indeed I am<br>
> right and<br>
> > they are wrong? (assuming that I am)<br>
> ><br>
> > So the scenario is:<br>
> > image.png<br>
> ><br>
> > _______________________________________________<br>
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> ><br>
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</blockquote></div>