Call manager 5.1 - Device License calculation

gnanavel.ns · ‎05-04-2008

While designing a UC solution based on Call Manager 5.1, how do we account for the device licenses which is based on the part number LIC-CM-DL-xx=. We just have to take into account the number of IP phones or we also have to take into account H.323 gateways, conferencing and MoH session which also consume device units?

For example, if the solution consists of 100 7911G phones ( 3 units) and 50 7960G phones ( each 4 units), should i configure the system with one qty of LIC-CM-DL-500= or do i need to take into account the device units consumed by other resources also?

Many thanks

Gnanavel.

Rob Huffman · ‎05-04-2008

Hi Gnanavel,

The DLU's need to be ordered only for IP Phones. In your case 500 DLU's would cover exactly. You may want to order some extras for future growth. This way you could add new phones without having to mess with Licensing.

http://ciscoknowledgenetwork.com/uc/documents/cm_device_calculator.xls

Hope this helps!

Rob

gnanavel.ns · ‎05-04-2008

Hi Rob,

Thanks for the clarification.

Best Regards

Gnanavel.

Rob Huffman · ‎05-04-2008

Hi Gnanavel,

You are most welcome! One thing to keep in mind is that most systems have a slight License overdraft (so you may have some grace here);

The License "Overdraft" is determined by Cisco and can be between 5 and 15%. It will show on the License File. Have a look (at this line in the file);

OVERDRAFT=50 indicates (5% of 1000) allowed overdraft. Cisco determines the overdraft value.

From this example;

INCREMENT PHONE_UNIT cisco 5.0 permanent uncounted \

VENDOR_STRING=1000000BCD4EE59D1.0

icFileVersion> \

HOSTID=000bcd4ee59d OVERDRAFT=50 \

NOTICE="200508261405391622 \

" SIGN="112D 17E4 A755 5EDC F616 0F2B B820 AA9C \

0313 A36F B317 F359 1E08 5E15 E524 1915 66EA BC9F A82B CBC8 \

4CAF 2930 017F D594 3E44 EBA3 04CD 01BF 38BA BF1B"

From this 5.0 doc;

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_administration_guide_chapter09186a0080633230.html

Hope this helps!

Rob