BLF does not lit up on 7915

[aeriksson]

Hi!

We have configured BLF SDs on a 7962 having two 7915s (12 button model). For some reason the BLF lamps does not lit on the 7915.

The CUCM version is 7.1.3. The phone load is SCCP42.9-0-3S and the firmware on the 7915 os B015-01-0-4. The 7915 works otherwise as they should, just the lamps not being lit when a DN is busy. Any clues?

Thanks

Anna

[Amit Divekar]

Hello Ana,

               Could you please clarify on the following points so that we get a clear picture.

1.  could you please check what is the status of the following Enterprise Parameter BLF Call List - Enable (by default this parameter is set to disable)

2. Could you please check the web-page of the phone & let me know what is the phone load info, i am asking you to check this to ensure that we have the correct load on the phone.

3. Pleaes refer the following doc for further clarification.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/7_1_2/ccmfeat/fsprsnc.html#wp1155652

It should work as per the table below:-

Cisco Unified IP Phone 7915 Expansion Module

The Cisco Unified IP Phone 7915 Expansion Module supports the following  Cisco Unified IP Phones that run SCCP and SIP: 7962G, 7965G, and 7975G.  Phones that run SCCP must run Cisco Firmware Release 8.3(5) or a later  release. Phones that run SIP must run Cisco Firmware Release 8.4(1) or a  later release.

Table 56 provides Cisco Unified IP Phone 7915 Expansion Module compatibility  information for Cisco Unified Communications Manager Release 4.x through  Release 8.x.

Find additional information at this URL:

http://www.cisco.com/en/US/products/hw/phones/ps379/tsd_products_support_series_home.html

Table 56     Cisco Unified IP Phone 7915 Expansion Module Compatibility with  Cisco Unified Communications Manager Release 4.x through Release 8.x

Firmware Version	Cisco Unified Communications Manager Version
1.0(2) - SCCP	4.2(3)SR31 , 4.3(1)2 , 4.3(2)3 , 5.1(3b), 5.1(3c), 6.1(1b), 6.1(2), 6.1(3a), 7.0(1)
1.0(2) - SIP	7.0(1)
1.0(2)SR1 - SCCP	4.2(3)SR31, 4.3(1)2, 4.3(2)3, 5.1(3b), 5.1(3e), 6.1(1b), 6.1(2), 6.1(3a), 7.0(1)
1.0(2) SR1- SIP	7.0(1)
1.0(3) - SCCP	6.1(3a), 6.1(4), 7.0(2), 7.1
1.0(3) - SIP	6.1(3a), 6.1(4), 7.0(2), 7.1
1.0(4) - SCCP	4.2(3) SR3a, 4.3(2), 5.1(3)b, 6.1(1), 6.1(2x), 6.1(3x), 6.1(4x), 6.1(5x), 7.x, 8.x

¹ Supports Cisco Unified Communications Manager Release 4.2(3)SR3a or later.

² Supports Cisco Unified Communications Manager Release 4.3(1)ES22.

³ Supports Cisco Unified Communications Manager Release 4.3(2)SR1a and Release 4.3(2)ES4.

Regards,

Amit.

[aeriksson]

Hi Amit!

The Ent Parm settings BLF Call List is already set to enabled.

The firmware that the phone is using is sccp42.9-0-35 and the firmware for the 7915 is B015-1-0-4. I can see in your table that at least the 7915 firmware is compatible with the CUCM version we are running 7.1.3.

Else, I see nothing wrong, but still no Busy Lamp lighting up......

thanks

Anna

[aklyuka30]

Check if you have correct SUBSCRIBE Calling Search Space on the phone wher you enable BLF

[khaledbahr]

This issue occurred with me as well, CUCM 11.x and the 7915 24 button expansion module

under phone settings, Protocol Specific Information --> SUBSCRIBE Calling Search Space should be a valid one.