Grandstream GXP2020 and GXP2010 IP Phone models produced in accordance with the new generation Operator Console. GXP2020 Extension Module is designed very stylish way. GXP2020EXT, is extremely simple to install and use. GXP2020 and GXP2010 models, as well as operator console designed for the attachment of the mounting sections, can be used conveniently. IP Phone to define a shortcut installed with 56 units located on the GXP2020 Extension module secretaries or managers can be a very comfortable way to reach internal medicine. In addition, conference / call transfer / forward / pick up properties for use with the keypad. 2 If you want to insert in GXP2020EXT with 112 the number of keys to the can.