Full-duplex Speakerphone
DIP Switches
120 Strata DK Digital Telephone 10/01
Note The first four DIP switches are used to sel ec t the country, same as all other
DK2000-series telephones. The default DIP switch settings (1~4) a re prese t to
On for the USA and Canada. If you need to make adjustments for other
countries, see Table 19 on Page 146.
➤To use the External Microphone
1. Plug in the RFDM External Microphone into the bottom of the telephone (see Figures
5 and 6).
2. Turn the microphone On by opening it (see Figure 7).
Note The High/Low switch works independently from the telephone’s
speakerphone. This setting must be on High for proper operation.
Important!
●The microphone has a narrow voice pick-up range so the front of the microphone
should always point toward the person speaking (see Figur e 8).
●Be sure to place the microphone at least one foot from the telephone speaker and
do not point the microphone toward the telephone speaker grille.
●To use the external microphone in a conference room setting, place the
microphone away from all parties to eliminate some of the directionality effect.
Parties may have to speak up to be heard.
CAUTION! Avoid pulling the microphone cord excessively.