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New Member

42 Buttons Limitations on CUCM 6.1.5.10000-10

We cannot utilize all the buttons on the Sidecars (7915 & 7916) to their maximum capacity due to the 42 buttons limitation on Callmanager.

We are using 7962.

IS this something that can be fixed by installing a device pack/patch?

If not, does anyone know the earliest CUCM version on which it is fixed ?

On CUCM 7.1.2, i found that it supports 54 buttons for 7962.

4 REPLIES
VIP Super Bronze

Re: 42 Buttons Limitations on CUCM 6.1.5.10000-10

Based on the release notes it appears that it was a limitation on SCCP through version 7.0(2a): http://www.cisco.com/en/US/partner/docs/voice_ip_comm/cucm/rel_notes/7_0_2/cucm-rel_notes-702a.html#wp581689

Starting in 7.1(2) this statement is absent from the release notes which suggests that the SCCP protocol was updated to support the 56 buttons possible.

Hall of Fame Super Red

Re: 42 Buttons Limitations on CUCM 6.1.5.10000-10

Hi Kumar,

This cannot be changed by any DevPak install/upgrade

Cisco Unified IP Phone Expansion Module 7916 Button Support (SCCP)

Call-Control Release

Total Number of Buttons Supported

Cisco Unified IP Phone 7962G and 7965G Models

Cisco Unified IP Phone 7975G

Cisco Unified Communications Manager 4.2(3)SR3a, 4.3(2), 5.1(3)b, and 6.1(1)

42

42

Cisco Unified Communications Manager 7.1(3) / Cisco IP Phone Firmware 8.5(3) and later

54

56

Cisco Unified Communications Manager Express 4.3/7.0 and later

54

56

http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/data_sheet_c78-468673.html

Cisco Unified IP Phone Expansion Module 7915 Button Support (SCCP)

Call-Control Release

Total Number of Buttons Supported

Cisco Unified IP Phone 7962G and 7965G Models

Cisco Unified IP Phone 7975G

Cisco Unified Communications Manager 4.2(3)SR3a, 4.3(2), 5.1(3)b, and 6.1(1), 7.0, and 7.1

42

42

Cisco Unified Communications Manager 7.1(3) / Cisco IP Phone Firmware 8.5(3) and later

54

56

Cisco Unified Communications Manager Express 4.3/7.0 and later

54

56

http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/data_sheet_c78-468672.html

Cheers!

Rob

New Member

Re: 42 Buttons Limitations on CUCM 6.1.5.10000-10

Thanks a lot to both of you.

Hall of Fame Super Red

Re: 42 Buttons Limitations on CUCM 6.1.5.10000-10

Hi Kumar,

You are most welcome my friend

Cheers!

Rob

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