OpenPhone 73 & 75 IP
All terminals are also equipped with a hands-free function and a DHSG headset connector. Power can supplied over Ethernet. The integrated switch allows a PC to be connected directly to the OpenPhone, thus reducing the amount of infrastructure required.
OpenPhone 73 IP
The OpenPhone 73 IP has a four-line display which provides an even better overview as well. Three softkeys and five function keys help you get to grips with even the most difficult communications tasks. This terminal can be expanded by adding up to three 73P keypad extensions.
OpenPhone 75 IP
The OpenPhone 75 IP was developed in order to deal with complex communications tasks. The illuminated 11-line display and the nine softkeys enable the user to keep track of an entire team at a glance and permit administration of the internal phonebook, call lists and switching function. The number of function keys can be increased by adding up to three 73P or 75D keypad extensions.

Key Extensions
Key Extension 73P Key Extension 75D
This keypad add-on makes an additional 36 softkeys (function and destination keys) available. It is compatible with the OpenPhone 73 IP and OpenPhone 75 IP. Up to three Key Extensions with 36 keys each can be connected.
Advice for OpenCom 1000: up to 10 call keys programmable per Key Extension 73P This keypad add-on expands an OpenPhone 75 IP by adding 20 softkeys (function and destination keys), each with three levels. The display is illuminated. Up to three 75D extensions can be connected.
