I have confusion ordering the callmanager
what is device license?
what is seat license?
Other thing, while we order ip phones, we have to choose license is there any relationship within call manager device license and ip phone license
First off, you are most welcome :) Here is the breakdown for your requirements;
For DLU's (Device License Units - Phones)
7911 - 400 x 3 DLU's per phone = 1200
7940 - 70 x 4 DLU's per phone = 280
7960 - 25 x 4 DLU's per phone = 100
7970 - 5 x 5 DLU's per phone = 25
Total Minimum ................ = 1605 DLU's
For Seat Licenses;
You need 1 Seat License per user
500 x 1 = Minimum 500 Seat Licenses
One thing to think about is using 7941's and 7961's to replace the 7940's and 7960's. These new 3rd generation models are a very nice upgrade.
Hope this helps!
Just to add a note to the great info from Dennis (5 points for your good work here Dennis!)
You will require two Licenses (Node License with seats that covers the number of proposed users and Device License Units/DLU's for phones);
**Licenses are generated for requested Cisco CallManager nodes (servers in a Cisco CallManager cluster - with seats *Node License) and the phones that are associated with those nodes (DLU's on a separate License).
***Note - Upload the license file only on the first node of Cisco CallManager cluster.
From this good doc:
The Cisco CallManager server where the license file is loaded, assumes the functionality of a license manager.
The license manager serves as the logical component that keeps track of the licenses that the customer purchases and the licenses that customer uses. It refers to the processes that control the checkin and checkout of the licenses. It keeps track of the number of license units that are required for each phone type. The license manager has responsibility for issuing and reclaiming licenses, and detecting whether there is an overdraft of licenses.
Device licenses are required for Cisco devices and for third-party devices, with the flexibility to replace third-party devices with Cisco devices. Device licenses are sold in increments of device-license units (DLU's). Device-license units are assigned to each device connected to Cisco Unified CallManager 5.0. Each device is assigned a unit number based on the type and capabilities of the device. Devices with more complex and high-end capabilities are assigned a higher number of units compared to devices with basic capabilities,
Here is the DLU breakdown;
Cisco Unified IP Phone 7902G = 1
Cisco Unified IP Phone 7905G = 2
Cisco Unified IP Phone 7911G = 3
Cisco Unified IP Phone 7912G = 3
Cisco Unified Wireless IP Phone 7920 (no battery) = 4
Cisco Unified IP Conference Station 7936 = 3
Cisco Unified IP Phone 7940G = 4
Cisco Unified IP Phone 7941G = 4
Cisco Unified IP Phone 7941G-GE = 4
Cisco Unified IP Phone 7960G = 4
Cisco Unified IP Phone 7961G = 4
Cisco Unified IP Phone 7961G-GE = 4
Cisco Unified IP Phone 7970G = 5
Cisco Unified IP Phone 7971G = 5
Cisco Unified IP Phone 7985G = 6
Third-party SIP device (basic) = 3 (third-party)
Third-party SIP device (advanced) = 6 (third-party
From this doc;
Hope this helps!
It depends what version of Call Manager you are ordering. If you are ordering Call Manager 5.x & higer you will need to order device license units. You will need to order enough device license units to cover the number of "devices" or phones you will be deploying on the system.
If you go the DLU route, you will not have to order the license that comes with the phone. These licenses are only for Call Manger 4.x & below.
Also check out the Call Manager Product Q&A on Cisco.com for detailed licensing questions & answers.