This multi-featured top of the line model supports advanced system functions. The Dialog 4225 Vision is ideal for demanding and executive office usage. Compared to Dialog 4223, this telephone features 10 extra programmable keys and a large, six-row, graphical display with three navigation keys and four soft-keys. Using the navigation keys in combination with soft-keys, the user can easily access a display menu with a number of system features such as phonebook, call list, diversion, absence reason, etc.

The Dialog 4224 Operator telephones are specifically designed for the needs of operators working with MD110 and BusinessPhone PBXs. They are designed to provide them with full switchboard access and functionality. Dialog 4224 Operators support advanced system functions that are required for operator configurations. The keys that are used most frequently have been enlarged and positioned with a comfortable space in between to grant fast and secure operation.

This multi-featured model supports advanced system functions for the professional office user. The Dialog 4223 Professional is ideal for administrative assistants and traditional Call Center (ACD) agents. Using soft-keys, the user can easily access the display menu with a number of system features such as phonebook, call list, diversion, absence reason, etc

The Dialog 4222 Office is a desktop telephone with full functionality for office user communication needs. It is user-friendly and equipped with a hands-free speaking function as well as an integrated headset port and a dedicated headset key.

This compact, cost-effective model offers all basic functions for office user communication needs. The Dialog 4220 Lite is specifically designed for users who want traditional telephone functions with good voice quality. It is a robust convenience phone well suited for visitor or service areas.