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<p class=MsoNormal><span style='color:#1F497D'>I guess I wonder why the H.323
GW would send an appropriate response once(“temporary failure) and then not on
subsequent calls (Unallocated/Unassigned Number). I would expect the
unallocated/unassigned cause code if I sent the wrong digits or length of
digits. The “temporary failure” cause code makes sense because the T1 is
down. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I agree with you that switching
the order of the RG’s fixes the issue but the GW’s are not interchangeable. Each
GW is located at different sites.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
george.hendrix@l-3com.com [mailto:george.hendrix@l-3com.com] <br>
<b>Sent:</b> Wednesday, November 18, 2009 5:02 PM<br>
<b>To:</b> Mark Marquez; cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] FW: CUCM Route List<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Of course if the devices are totally interchangable with the same #
of ports you can put the mgcp gw as your primary and since it registers with
cucm, cucm will know if it is down.<br>
<br>
Bill</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<div>
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style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>: Hendrix, George (Bill) @ ITS <br>
<b>To</b>: 'MMarquez@goldsys.com' <MMarquez@goldsys.com>;
'cisco-voip@puck.nether.net' <cisco-voip@puck.nether.net> <br>
<b>Sent</b>: Wed Nov 18 18:56:17 2009<br>
<b>Subject</b>: Re: [cisco-voip] FW: CUCM Route List </span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>You are seeing this because the T1 status on the h.323 gw isn't
known to cucm. I believe what you would need to do is setup dial peers between
the mgcp gw and the h.323 gw. Then on the h.323 gw put a higher preference on
the T1 with the dial peer to the mgcp gw next.<br>
<br>
Bill</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<div>
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style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>: cisco-voip-bounces@puck.nether.net
<cisco-voip-bounces@puck.nether.net> <br>
<b>To</b>: cisco-voip@puck.nether.net <cisco-voip@puck.nether.net> <br>
<b>Sent</b>: Wed Nov 18 16:29:20 2009<br>
<b>Subject</b>: [cisco-voip] FW: CUCM Route List </span><span style='font-size:
12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<p class=MsoNormal>Here is some supplemental information regarding my previous
email. Here is a summary of the problem.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>RouteList-1<o:p></o:p></p>
<p class=MsoNormal> H323-HW-RG<o:p></o:p></p>
<p class=MsoNormal> MGCP-GW-RG<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I make a call that uses Route List (RL-1). The first
call is successful call via the H323-HW-RG. I then disconnect the T1
cable to the H323 GW (creating a failover scenario) and my second call fails
over successfully to the MGCP-GW-RG. I make a third call, which again
uses MGCP-GW-RG and the call fails. All other subsequent calls also
fail. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I ran a CCM trace and I see that on the second call attempt
(first screenshot below) the H323 GW (10.10.32.2) sends back a H.225
RELEASE_COMP message with Cause i = 0x08E089 – Temporary Failure. CUCM
responds to this cause code by sending an MGCP CRCX message to the failover GW
(10.10.32.1) thereby resulting in a successful call.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>In the second screenshot where I made the third failed call
attempt you’ll notice that the H.323 GW also sends a RELEASE_COMP message but
it has a different cause code Cause I = 0x080081 – Unallocated/Unassigned
Number. As a result of this cause code CUCM does not send the MGCP CRCX
message to the failover MGCP GW and the call ultimately fails.
Any ideas on how to modify this behavior?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><img width=1280 height=776 id="Picture_x0020_2"
src="cid:image001.png@01CA6871.38236F80"><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><img width=1280 height=776 id="Picture_x0020_4"
src="cid:image002.png@01CA6871.38236F80"><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Mark Marquez <br>
<b>Sent:</b> Monday, November 16, 2009 4:42 PM<br>
<b>To:</b> 'cisco-voip@puck.nether.net'<br>
<b>Subject:</b> CUCM Route List<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Are there any special rules regarding H.323 and MGCP
gateways configured within the same CUCM Route List. I have a route list
with two route groups. RG1 has the H.323 GW. RG2 has the MGCP GW.
<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>RL-1<o:p></o:p></p>
<p class=MsoNormal>
RG1 (H.323)<o:p></o:p></p>
<p class=MsoNormal>
RG2 (MGCP)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>In the above configuration, failover to the MGCP GW doesn’t
work. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>RL-1<o:p></o:p></p>
<p class=MsoNormal>
RG2 (MGCP)<o:p></o:p></p>
<p class=MsoNormal>
RG1 (H.323)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I modify the Route List to include RG2 and then RG1 (as
illustrated above) and failover works as expected. FYI, I cause a
failover by unplugging the T1 cable from the controller.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I also tested just using RG1 or RG2 within RL-1 and calls
complete successfully. Any help is appreciated.<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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