Cisco 8851 Manuel - Page 23

Cisco IP Phone Accessories

Step 10

Use a screwdriver to fasten the screws into the phone and into each key expansion module.

This step ensures that the phone and key expansion modules remain connected at all times. This diagram

shows the location of the screw holes.

Note

Step 11

(Optional) Install the footstands on the phone and on the key expansion modules, and adjust all footstands to

rest evenly on the work surface.

Step 12

Plug the Ethernet cable into the phone.

Auto Detection of Key Expansion Modules

You can configure a new phone to auto-detect the maximum number of key expansion modules that it supports.

For these phones, the Number of Units field shows the maximum number of key expansion modules that the

phone supports as the default value. When a user adds key expansion modules to these phones, the module

lights up and is enabled automatically. Default value of this field is 2 for Cisco IP Phone 8851 and 3 for Cisco

IP Phone 8861. Navigate to Admin Login > Advanced > Voice > Att Console to check the value of the

Number of Units field.

If your user has an older release phone and it is upgraded to the current release, you can change the cofiguration

of the phone so that when the user adds a key expansion module to the phone, it lights up and is enabled

automatically.

Make sure that the screws are fully inserted into the phone and tightened.

Auto Detection of Key Expansion Modules

Cisco IP Phone Accessories