The icons on the deskphones' display can be shown as pictures or text (or both, in some cases).

This can be modified by setting this parameter

https://service.snom.com/display/wiki/context_key_text

And the changes will take effect in the following way


On color display

If enabled (on), soft keys are symbolised by text and icons

While ON

If disabled (off), soft keys are symbolised only by icons

While OFF



On monochrome display

If enabled (on), soft keys are symbolised only by text

While ON

If disabled (off), soft keys are symbolised only by icons

While OFF


This can be changed on the configuration/provisioning file or in the phone web interface getting to Preferences→Appearance→Text Only Display on Soft Keys