<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=utf-8">
<META content="MSHTML 6.00.2900.3243" name=GENERATOR></HEAD>
<BODY style="MARGIN: 4px 4px 1px; FONT: 10pt Tahoma">
<DIV>Found it.....</DIV>
<DIV> </DIV>
<DIV> Cisco recommends using the following guidelines when deploying call coverage using top-down, circular, and longest-idle algorithms:</DIV>
<DIV><BR>• The Cisco Unified CallManager cluster supports a maximum of 15,000 hunt list devices.</DIV>
<DIV><BR>• 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 Cisco CallManager service parameters. Cisco recommends setting the dial plan initialization timer to 600 seconds if 1500 hunt lists are configured.<BR>Note 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.</DIV>
<DIV><BR>• 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 Cisco Unified CallManager 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.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>>>> "STEVEN CASPER" <SCASPER@mtb.com> 2/5/2008 1:40 PM >>><BR></DIV>
<DIV> We are upgrading to CCM 4.2.3 next month ( like to go to 6.1 but we are still wrestling with compatibility issues such as what to do about IPCC-X, TAPS and backups) and there is a lot of interest in Hunt Groups now that users can log into and out of them. Are there any limitations on how many you can have in a cluster and the number of members in each group?</DIV>
<DIV> </DIV>
<DIV>Thanks!</DIV>
<DIV>Steve</DIV>
<P>************************************<BR>This email may contain privileged and/or confidential information that is intended solely for the use of the addressee. If you are not the intended recipient or entity, you are strictly prohibited from disclosing, copying, distributing or using any of the information contained in the transmission. If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act and the Sarbanes-Oxley Act. You may not directly or indirectly reuse or disclose such information for any purpose other than to provide the services for which you are receiving the information.<BR>There are risks associated with the use of electronic transmission. The sender of this information does not control the method of transmittal or service providers and assumes no duty or obligation for the security, receipt, or third party interception of this transmission.<BR>************************************<BR></P>
<P>************************************<br>
This email may contain privileged and/or confidential information that is intended solely for the use of the addressee. If you are not the intended recipient or entity, you are strictly prohibited from disclosing, copying, distributing or using any of the information contained in the transmission. If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act and the Sarbanes-Oxley Act. You may not directly or indirectly reuse or disclose such information for any purpose other than to provide the services for which you are receiving the information.<br>
There are risks associated with the use of electronic transmission. The sender of this information does not control the method of transmittal or service providers and assumes no duty or obligation for the security, receipt, or third party interception of this transmission.<br>
************************************<br>
</P></BODY></HTML>