When adding the linksys sidecar module, please configure the unit with the following settings:

Step-by-step guide

Log into the phone using the standard way.

1. Select ‘Admin’ from the top right bar.
2. Select ‘Advanced’ from the top right bar.
3. Select ‘Att Console’ from the tabs menu.
4. Select Server Type: Asterisk
5. Set Attendant Pickup Mode: *8
6. Add each key with the script displayed in the image below.