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<div class=Section1>
<p class=SP14184537><span style='color:black'>The only guidelines in Cisco’s
SRND (<a href="http://www.cisco.com/go/srnd">www.cisco.com/go/srnd</a>) I could
find are copied below:<o:p></o:p></span></p>
<p class=SP14184333><span style='color:black'><o:p> </o:p></span></p>
<p class=SP14184334><span style='color:black'><o:p> </o:p></span></p>
<p class=SP14184339><span class=SC14221201><span style='font-size:13.5pt'>Hunt
Pilot Scalability </span></span><span style='font-size:13.5pt;color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"KFNIM C+ Times","serif"'>Cisco
recommends using the following guidelines when deploying call coverage using
top-down, circular, and longest-idle algorithms: </span><b><span
style='font-size:9.0pt'>• </span></b><span style='font-size:10.0pt;font-family:
"KFNIM C+ Times","serif"'>The Unified CM cluster supports a maximum of 15,000
hunt list devices. </span><b><span style='font-size:9.0pt'>• </span></b><span
style='font-size:10.0pt;font-family:"KFNIM C+ Times","serif"'>The hunt list
devices may be a combination of 1500 hunt lists with 10 IP phones in each hunt
list, or a combination of 750 hunt lists with 20 IP phones in each hunt list.
However, an increase in a number of hunt lists can require increasing the dial
plan initialization timer specified in the Unified CM service parameters. Cisco
recommends setting the dial plan initialization timer to 600 seconds if 1500
hunt lists are configured. </span><b><span style='font-size:9.0pt;font-family:
"KFOBA G+ Helvetica","sans-serif"'>Cluster B IP WAN </span></b><span
style='font-size:6.0pt;font-family:"KFOBK D+ Helvetica","sans-serif"'>126915 </span><span
style='font-size:9.0pt;font-family:"KFOBK D+ Helvetica","sans-serif"'>IP Phones
</span><b><span style='font-size:7.5pt;font-family:"KFOBA G+ Helvetica","sans-serif"'>IP
IP IP </span></b><b><span style='font-size:9.0pt;font-family:"KFOBA G+ Helvetica","sans-serif"'>Hunt
Pilot Hunt List Line Group </span></b><b><span style='font-size:3.5pt;
font-family:"KFOBA G+ Helvetica","sans-serif"'>M M M MM </span></b><b><span
style='font-size:10.0pt;font-family:"KFOBA G+ Helvetica","sans-serif"'>V </span></b><b><span
style='font-size:9.0pt;font-family:"KFOBA G+ Helvetica","sans-serif"'>Cluster A
</span></b><span style='font-size:9.0pt;font-family:"KFOBK D+ Helvetica","sans-serif"'>IP
Phones </span><b><span style='font-size:7.5pt;font-family:"KFOBA G+ Helvetica","sans-serif"'>IP
IP IP </span></b><b><span style='font-size:9.0pt;font-family:"KFOBA G+ Helvetica","sans-serif"'>Hunt
Pilot Hunt List Line Group </span></b><b><span style='font-size:3.5pt;
font-family:"KFOBA G+ Helvetica","sans-serif"'>M M M MM </span></b><b><span
style='font-size:9.0pt;font-family:"KFOBA G+ Helvetica","sans-serif"'>Hunt Fwd
No Answer Route Pattern </span></b><span style='font-size:9.0pt;font-family:
"KFOBK D+ Helvetica","sans-serif"'>Intercluster Trunk</span><b><span
style='font-size:10.0pt;font-family:"KFNHF H+ Univers","sans-serif"'>10-56 </span></b><b><span
style='font-size:8.0pt'>Cisco Unified Communications SRND (Based on Cisco
Unified Communications Manager 7.x) OL-16394-01 Chapter 10 Dial Plan Dial Plan
Elements </span></b><b><span style='font-size:9.0pt'>Note </span></b><span
style='font-size:10.0pt;font-family:"KFNIM C+ Times","serif"'>When using the
broadcast algorithm for call coverage, the number of hunt list devices is
limited by the number of busy hour call attempts (BHCA). Note that a BHCA of 10
on a hunt pilot pointing to a hunt list or hunt group containing 10 phones and
using the broadcast algorithm is equivalent to 10 phones with a BHCA of 10. </span><b><span
style='font-size:9.0pt'>• </span></b><span style='font-size:10.0pt;font-family:
"KFNIM C+ Times","serif"'>Cisco recommends having a maximum of 35 directory
numbers in a single line group configured to send the calls simultaneously to
all DNs. Additionally, the number of broadcast line groups depends on the BHCC.
If there are multiple broadcast line groups in a Unified CM system, the number
of maximum directory numbers in a line group must be less than 35. The number
of busy hour call attempts (BHCA) for all the broadcast line groups should not
exceed 35 calls set up per second.</span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<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"'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Mehmet Turunc<br>
<b>Sent:</b> Thursday, November 27, 2008 7:03 AM<br>
<b>To:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> [cisco-voip] hunt pilot number limitation<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi all,<br>
<br>
Anybody knows what is the limitation of hunt pilot numbers on CUCM 6.x.x ? We
use 6.1.2 and need the exact number.<br>
<br>
Any help will be appreciated..<br>
<br>
Regards,<br clear=all>
<br>
-- <br>
Mehmet TURUNC<o:p></o:p></p>
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