Polycom VVX Expansion Module (Color)
The VVX Expansion module allows for additional monitoring of extensions, one touch park/transfer and other features. Up to three modules can be added to any VVX300/310/400/410/500/600 phone and has 40 line keys. It also allows for three pages for up to 120 contacts per unit.
This unit is color LCD and updates automatically with your phone system.
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