CME: Extension Monitoring without shared lines

Unanswered Question
Mar 21st, 2008

CME: Monitoring Extension

Currently, Phone 1, ext is setup for ext 2311, and Phone 2 - extension 2322.

I want to setup Phone 1 DN11 to monitor DN22 but when adding the command button 1:11 1m1 [if i say, 2m1 then it works fine but i lose button 2 altogether] - it places the line as a shared line w/ phone 1. Is there a way for the phone to accomplish this without shared lines?

Configuration Example:

ephone-dn 11

description phone 1

number 2311

ephone-dn 22

description phone 2

number 2322

ephone 1

button 1:11

ephone 2

button 1:22 1m11

I have this problem too.
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Adrian Saavedra Fri, 03/21/2008 - 10:56


You can monitor lines without sharing with BLF (busy lamp field). The BLF commands are supported in:

1) Cisco Unified CME 4.1, IOS Release 12.4(11)XJ

2) Cisco Unified CME 4.1, 12.4(15)T

For example:

Router(config)# ephone 1

Router(config-ephone)# blf-speed-dial 1 label

Router(config-ephone)# blf-speed-dial 2 label


-- adrián.

Paolo Bevilacqua Fri, 03/21/2008 - 17:10

Excuse me, but how you can expect to have your line and someone else status on the same button ?

which line would be supposed to have precedence when both lines want to lit the button and take the corresponding display ?

It is clearly a conflicting situation that cannot be resolved without too many compromises, so you cannot do that.

If you need to monitor lines, get a 6 buttons phone and possibly one or two extensions, that's what everyone happily does.

Adrian Saavedra Fri, 03/21/2008 - 17:22


Sorry, the example is only for showing how to use the blf command.


-- adrián.

alphonsogriffin Mon, 03/24/2008 - 09:48


thank you for your posting - i was away for a few days - so basically, there's no way to monitor a line without sacrificing additional bottoms on the rept phone.

Whatif, the buttons are currently setup as speed dials - Can the same button be setup to monitor?

Paolo Bevilacqua Mon, 03/24/2008 - 09:55

You cannot use a single button for different purposes.

The only way you can associate more than one line to a single button is the so called "overlay", but that doesn't do monitoring and only the status of the first line is reflected on the display.

However, buttons in motir will work as speed-dial or speed-tansfer in the sense the corresponding line is called or transferred to when you press the button.

alphonsogriffin Mon, 03/24/2008 - 10:00

thank you very much for the clarity. Additional, question follow.

what do solution do most engineers use to monitor lines?

i.e. i want to setup a reptionist phone to monitor a hand full of extensions - to see if the lines are available prior to tranferring...

Paolo Bevilacqua Mon, 03/24/2008 - 10:33

The easier is monitor button on the 7914 "sidecar". If you configure "service dss" under telephony-service, transfer is done simply pressing the line button, no need to press transfer before.

Note, even if the line is busy (button is red) you can still transfer the call, as long the destination ephone-dn is dual-line and has "no huntstop channel".

Hope this helps, please rate post if it does!

Paolo Bevilacqua Mon, 03/24/2008 - 11:53

Your reference is "Cisco CME system administrator guide", search in the form on top right.

As an appreciation to those providing answers, please rate useful posts with the scrollbox below!

alphonsogriffin Mon, 03/24/2008 - 14:29


I've applied the service-dss command - however, still the buttons do not light up indicating line activitity or status [i.e. red for busy or green for available]

Current, I have speed dial setup and i want the Receptionist to be able to hit the speed dial button depending on the lamp status of the line.

So, my first requestion -

1] How do I turn on monitoring for the sidecar buttons [i.e. line status/activity]?

2] Can this feature be overlayed w/ speed-dial?


ephone 1

description Receptionist Line - 4510

ephone-template 1

speed-dial 13 4531 label "TEST PHONE1"

speed-dial 14 4524 label "TEST PHONE2"

type 7962 addon 1 7914 2 7914

button 1:1 2:61 3:62 4:63

button 5:65 6:64

Paolo Bevilacqua Mon, 03/24/2008 - 15:09

Hi, use the "m" button command for ephone-dn to monitor. When idle and press it, that extension will be called. When on a call, will initiate a transfer.

alphonsogriffin Tue, 03/25/2008 - 07:05

Yes, I am fimilar with the following: b, s and m commands.

I'm still not able to get the bottons to monitor the speed-dial buttons.


Is it true, they only way the Receptionist will be able to monitor the status of certain extension lines is to remove the speed-dial feature? [or, can the extension be monitor together with speed-dial assigned to individual bottons?]

Current configuration is as follow:

ephone 1

description Receptionist Line - 4510

ephone-template 1

speed-dial 7 4531 label "Computer Rm"

speed-dial 8 4524 label "Conference.Rm1"

speed-dial 9 4525 label "Conference Rm2"

speed-dial 10 4516 label "Production

speed-dial 11 4535 label "Quality.Control"

speed-dial 12 4515 label "Test.Lab"

speed-dial 13 4517 label "Lobby2"

type 7962 addon 1 7914 2 7914

button 7:50 7m50

button 8:61 8m61

button 9:62 9m62

button 10:63 10m63

button 11:65 11m65

button 12:64 12m64

button 13:64 13m64


example ephone-dn

ephone-dn 50 number 6531

label Line 3

description Computer Room - 4531

call-forward busy 1099

call-forward noan 1099 timeout 20

Paolo Bevilacqua Tue, 03/25/2008 - 07:20

Hi, as mentioned before, once you configure monitor for an extension, it will work as speed-dial and speed-transfer also.

alphonsogriffin Tue, 03/25/2008 - 07:22

ok, i will remove the old configuration and rebuilding per your notes - i just need clarity - it was confusing - thx you again.. will keep you posted.

rob.huffman Mon, 03/24/2008 - 17:04

Hi Alphonso,

Just to add link to the great info from Paolo;

Monitor Mode for Shared Lines

In Cisco CME 3.0 and later versions, Monitor mode for shared lines provides a visible line status indicating whether the line is in-use or not.

When the line is in use, it cannot be used for incoming or outgoing calls. A monitor-line lamp can be off or unlit only when its line is in the idle call state. The idle state occurs before a call is made and after a call is completed. For all other call states, the monitor line lamp is on or lit.

The line button for a monitored line can also be used as a direct-station-select for a call transfer when the monitored line is in an idle state. In this case, the receptionist who transfers a call from a normal line can press the Transfer button and then press the line button of the monitored line, causing the call to be transferred to the phone number of the monitored line.

For configuration information, see the "SCCP: Assigning Directory Numbers to Phones" section.

Monitor mode is intended for use only in the context of shared lines so that a receptionist can visually monitor the in-use status of several users' phone extensions; for example, for Busy Lamp Field (BLF) notification.

The following example shows a monitor-line configuration. Extension 2311 is the manager's line, and ephone 1 is the manager's phone. The manager's assistant monitors extension 2311 on button 2 of ephone 2. When the manager is on the line, the lamp is lit on the assistant's phone. If the lamp is not lit, the assistant can speed-dial the manager by pressing button 2.

ephone-dn 11

number 2311

ephone-dn 22

number 2322

ephone 1

button 1:11

ephone 2

button 1:22 2m11

Hope this helps!



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