Additional Features

Conference Calling

1.Only two lines can be joined for a conference call. To place a conference call, select a line and dial the number. Place this line on hold. Select a second line and dial the number. Place this line on hold.

2.Press the [CONF] button to connect the two held lines.

3.To discontinue the conference but remain the connection to one of the lines (eg. Line 3), press [LINE 3]. The B450D will switch to [LINE 3] and disconnect the other line.

4.To end the phone call, press the Line key for the line you are using, press [SPEAKER], or return the handset to its cradle.

Using the Speakerphone or Headset

A headset can only be used in place of the speakerphone. It is user programmable that if the headset is enabled, the speakerphone is disabled. See “Telephone Setup” on page 15 for information about changing this setting.

1.Press [SPEAKER] to turn on the speakerphone or the headset. The Speaker LED indicator will light.

2.To end the phone call, press [SPEAKER]. The Speaker LED indicator light will turn off.

Headset jack

1.Plug a headset with a 2.5mm plug in the jack on the left side of the base, next to the handset jack.

2.In order for the headset to work, change the headset setting to ON (see “Telephone Setup” starting on page 15).

Pause

You may use this feature to create a dialing pause between digits during a call. The Pause function is most useful for programming dialing delays in long number sequences of certain speed dial numbers such as voice mail codes and international phone numbers.

If you press the [REDIAL/P] key when storing a number, you add a 4-second delay to the dialing sequence (you may do this more than once to create a longer delay). You may insert a pause anywhere in the number.

ADDITIONAL FEATURES

Mute

1.To mute the speakerphone, headset, or handset microphone, press [MUTE]. The Speaker LED will flash and the display will say “MUTE.”

2.To un-mute the microphones, press [MUTE] again. The display will briefly show “Mic On.”

Tone

If you have Pulse telephone service, you may find it necessary to dial a number using Tone dialing because some specialized communications services, such as telephone banking or retrieving voice mail, require tone signaling. Your phone has the ability to temporarily change from Pulse to Tone dialing.

1.Dial the desired number in Pulse mode.

2.Press the [*] key to dial any additional digits using Tone signaling. This temporary tone dialing ends when you terminate the call.

Flash

The [FLASH] key supports custom-calling services that you have subscribed to from your local telephone company (such as call waiting or three-party conference calling).

The Flash duration is programmable. See “Telephone Setup” for more information about changing the Flash break length. The default is 600msec.

Quitting

Use the [QUIT] button to quit any process and return the telephone to idle mode. Quit does not end a call.