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<p class=MsoNormal>I am currently setting up Level3 as a provider of SIP
Toll-Free services. I am hearing from my account team that they don’t
have any option other than their BusyNoAnswer option to failover from one SIP
IP (on my side) to another. If I send back a 486 or there is a timeout they
can failover to a second trunk. Unfortunately, they can’t decouple the
486 and timeout scenarios… and that doesn’t work, because 486 is a
normal non-error condition on my network and I wouldn’t want the call to
be re-presented to another location just because the first location sent a
BUSY.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have asked them if they can failover on 5XX errors or
internally generated 408, but they seem to think they are unable to do anything
like this.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Anyone have any experience with Level3 in this scenario?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks,<o:p></o:p></p>
<p class=MsoNormal>Geoff<o:p></o:p></p>
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