Outside Calls; Speakerphone Calling - Iwatsu OM-KTD30 Owner's Manual

Outside calls

All calls can be made from an idle telephone, there is no need to press the
SPKR key or lift the handset. For an outside line, dial 9 or press a line key
and dial the desired telephone number. Once connected, lift the handset if
you wish to converse privately.

Speakerphone calling:

1. Dial 9 or press a Line key.
2. Dial phone number.
3. While talking, the display will show the following:
DIGITAL TELEPHONE USER GUIDE - 28