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New Member

upgrade CCM from 4.1(3) to 6.0

can any body help with CCM upgrade to 6.0

first , can i upgrade to CCM 6 directly or i should first upgrade to 5.1 then to 6.0?

2nd, do we need to order upgrade license? i have seen the upgrade procedure and i have not seen any thing, they say that the license will preserved for phones and node, while in other documents i have seen that i need to order CCM6.0 _U_k9 part number? im really confused

Hall of Fame Super Red

Re: upgrade CCM from 4.1(3) to 6.0

Hi Tariq,

Cisco CallManager Upgrade Paths

You will require two different types of 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 (the number of servers in a Cisco CallManager cluster - with seats *Node License) and the phones that are associated with those nodes (called DLU's (Device License Units) 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;

License Unit Calculator


Use this window to calculate the number of phone unit licenses that are required for a specific configuration of type of phones and number of phones of each type.

Calculating License Units

Use the following procedure to calculate the number of phone licenses that are required when the number of phone types and the total number of phones per phone type is entered.


Step 1 Choose System > License > License Unit Calculator.

The License Unit Calculator window displays. The number of license units that are consumed per device displays corresponding to the node or device.

Step 2 In the Number of Devices column, update the number of needed devices corresponding to each node or phone.

Step 3 Click Calculate.

The total number of Cisco CallManager node license units and phone license units displays.

Hope this helps!


New Member

Re: upgrade CCM from 4.1(3) to 6.0

well ok i know this. there is no need to buy new nodes and device unit license, but as i guess we should buy a software upgrade from 4.1 to 6.0 i guess this will send us the software of CCM 6. is that correct? any help guys

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