Supports VVX Expansion Module and VVX Color Expansion Module (Expandability up to 3 modules)</br>Easily integrate with third- party UC and productivity applications for broad?? standards-based?? open APIs</br>12 lines or speed dial keys</br>2 x Ethernet 10/100 or GigE</br>Power Supply Included</br></br>Product Description</br></br>Give your call attendant a high-quality?? cost effective UC solution that will handle their moderate call volume and provide them with the advanced telephony features they expect from a modern media phone.</br><br/>http://www.amazon.com/gp/product/B00E7GOWBQ