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Operating your IP Phone 1220
138
Using Centrex Services
You can use a few Centrex services from your IP phone. Contact your
system administrator to determine if the following features are available:
• “Using Centrex or Exchange Line Switchhook Flash” on page 138
• “Using AutoDial Transfer” on page 138
Using Centrex or Exchange Line Switchhook Flash
Use the Centrex or Exchange Line Switchhook Flash feature during an
active call to use Call Transfer or Three-Way Calling.
Using AutoDial Transfer
Use the AutoDial Transfer feature to transmit digits to the Central Office
after a Trunk Switchhook Flash. You must be on a Central Office/
Exchange (CO) trunk call from, or connected to, a CO that offers Centrex
or exchange line-type features.
1. During a call, press the CentrexSHF
key.
You hear a special dial tone.
2. Dial the codes for your custom Centrex
feature.
3. Press the Goodbye key to end the call.
1. Press the CentrexSHF key, and wait for
an interrupted dial tone.
CentrexSHF
(Goodbye)
CentrexSHF