Cortelco CP4400 - Manual (Page 10)

10
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.