Part of this depends on the provider. <br><br>I've tried this with both SIP (on the GW) and MGCP (in CUCM as Eric mentioned) controlled gateways with mixed results.<br><br>When the provider honors the busy status of your channel via the in / out of service message it works great.<br>
<br>ATT in Atlanta does not honor the busy status unless you order that specific service from them. You can set all your channels to busy and they'll still send calls in if the D channel is up and they haven't logged calls on those channels. It was a HUGE pain because we were trying to use the SIP busyout keepalive function, but wound up having to use a script to just take down the whole D-channel instead for inbound call failover.<br>
<br>Verify with 'show isdn status' and 'show isdn service'. If your channels are in the busy state but you're still getting inbound calls then check with your provider.<br><br>-Jason<br><br><div class="gmail_quote">
On Fri, Apr 20, 2012 at 1:43 PM, Erick Wellnitz <span dir="ltr"><<a href="mailto:ewellnitzvoip@gmail.com">ewellnitzvoip@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
It's only supposed to be for troubleshooting but look at 'change b-channel maintenance status' in CallManager service parameters<br><br>
<div class="gmail_quote"><div><div class="h5">On Fri, Apr 20, 2012 at 12:34 PM, Tim <span dir="ltr"><<a href="mailto:bcchimp@gmail.com" target="_blank">bcchimp@gmail.com</a>></span> wrote:<br>
</div></div><blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;PADDING-LEFT:1ex" class="gmail_quote"><div><div class="h5">
<div vlink="purple" link="blue" lang="EN-US">
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<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt">I'm using quite a few PRIs via MGCP to CUCM. I'm wondering if there's a way to busy up the PRI channels so that they'll start using the other PRIs on the other router. Trying to reload one of my routers, but can't stop the inbound calls from coming in on the certain PRIs. I was thinking it's possible, but maybe not.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt">Thanks,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:'Calibri','sans-serif';COLOR:#1f497d;FONT-SIZE:11pt">Tim<u></u><u></u></span></p></div></div><br></div></div>_______________________________________________<br>
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