<div dir="ltr">I can't tell which direction you're referring to the 503 coming from, but in my experience CUCM will 503 you for two reason at least:<div><br></div><div>1) You didn't add the IP address which is sending to you, to a SIP trunk, so CUCM rejects the call</div><div><br></div><div>2) You need to bounce the SIP trunk again (and maybe even 3 or 4 more times just to be sure)</div><div><br></div><div>If you were meaning that QM sends the 503, it's possible QM is doing the same, and you are sending from a CUCM node that QM wasn't expecting to receive an INVITE from, or you just need to bounce the QM "sip trunk" which is probably one of the services I can't think of at the moment.</div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, Jan 10, 2018 at 8:58 PM Jonathan Charles <<a href="mailto:jonvoip@gmail.com">jonvoip@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">So, Built in bridge is enabled, sip trunk to Calabrio is set up... but when the call hits QM, we get a 503 Service Unavailable...<div><br></div><div>Not seeing a lot of documentation on what would cause this...</div><div><br></div><div>Any pointers to a direction?</div><div><br></div><div><br></div><div>Jonathan</div></div>
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