TELEPHONE FEATURES

To Place A Call

Press the On/Off button and you will hear a dial tone. The On/Off LED will light. Dial the telephone number using the keypad.

To End A Call

Press the On/Off button. The On/Off LED will no longer be lighted.

To Answer A Call

When the Conference Telephone rings, press the On/Off button to answer the call, and the LED indicator will light up to signal the unit is ON.

To Adjust Volume

To adjust volume level, use the VOL+ and VOL- keys until the desired level is reached. Twelve volume steps are available. When the maximum or minimum volume is reached, the Volume Status LED will turn red.

To Mute A Conversation

To turn off the microphones during a conversation, press the MUTE button. The LED indicator will flash to signal that the user cannot be heard at the other end of the line. To turn on the microphones, press the MUTE button again.

To Place a Call on Hold

To place a call on Hold, press the HOLD button during a conversation. The Hold LED indicator will flash and both the microphones and speaker will be muted so that neither party can be heard by the other. To remove a call from Hold, press the HOLD button again. Please note that the ON/OFF button cannot be used to retrieve a call from hold.

To Use Redial

With the conference phone is off-hook, press the REDIAL button to call the last number dialed.

To Use Flash

Pressing the FLASH button will generate a timed hookswitch signal. The standard value for this time is 600 milliseconds. See the instructions on Page 4 for setting the Flash time.

Flash may be used to switch between calls if the user subscribes to Call Waiting services from the local telephone company. It may also be used for three-way calling. Again a subscription to this service is required. Instructions for these features should be obtained from the telephone company.

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Cortelco CP4400 instruction manual Telephone Features