Mitel 4015 - Manual (Page 18)

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Messaging - Callback
To leave a Callback Message on a telephone when you hear busy or
ringback tone:
z
Press MESSAGE.
To respond to a message waiting condition on your telephone:
1. Press MESSAGE.
2. Do one of the following:
„
To call the message sender, press #.
„
To erase the message, press *.
USING ADVANCED FEATURES
Account Codes
To use Forced Account Codes:
1. Lift the handset.
2. Dial the Account Code digits.
3. Press #.
To enter an Account Code during a call:
1. Press TRANS/CONF.
2. Dial **3.
3. Dial the Account Code digits.
4. Press #.
5. Press CANCEL.