<div>You either answer a call with 200, redirect with 3xx, or give an error 4xx 5xx or 6xx... basically without answering your only option is to return an error.</div><div><br></div><div>The specific error code can show a varying number of levels of 'error' though. Some might be a perfectly valid result (eg 486 User Busy) while other's imply a more serious error (eg 500 Server Internal Error). But there's not really one for a successful unanswered call.</div>
<div><br></div><div>How your phone behaves on the various errors is really up to the SIP client though. A generic unable to connect message doesn't sound very useful, I'd expect different error tones depending on the response code.</div>
<div><br></div><div>-Steve</div><div><br></div><div><br><br><div class="gmail_quote">On 11 February 2013 15:30, Gary Foreman <span dir="ltr"><<a href="mailto:gaz.foreman@gmail.com" target="_blank">gaz.foreman@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi,<div><br></div><div>I'm having an issue gracefully terminating calls prior to them being answered.</div>
<div><br></div><div>When I issue the uuid_kill command prior to the call being answered my sip client gives an error "unable to connect" with an error tone.</div>
<div><br></div><div>Is it possible to cancel the client dial without causing an error? Maybe using a sip notify message or something?</div><div><br></div><div>I can't seem to find a list of valid sip notify messages anywhere.</div>
<div><br></div><div>Thanks</div></div>
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