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9
Model 8520 Display Phone User Guide
SOFTWARE COMPATIBILITY
Your phone is compatible with Axxess software versions 7.0 and later. Phones using
software versions 3.0 to 6.x have limited functionality in the following areas:
• The Station Speed-Dial key will not work; however, you can still use this feature
by dialing the Station Speed-Dial feature code (see page 52).
• The Page key will not work; however, you can still use this feature by dialing the
Page feature code (see page 55).
• The Message Indicator lamp will not work; however, the Message key will still
function properly (see page 30).
• The dedicated headset audio jack will not work; however, you can still use the
headset by plugging the headset into the handset jack and dialing the Headset On/
Off feature code (see page 27).
• The optional Mini-DSS will not work.
• The Transfer, Answer, Outgoing, System Speed-Dial and Redial lamps will not
light.
The Model 8520 Display Phone does not support software versions 3.0 and earlier.
NOTE: This information about compatibility applies to phones programmed to use the
default key locations. Your keys may have been programmed differently. If you are
uncertain about the configuration, ask your System Administrator.