Dialog 4220 Lite This compact, cost-effective model meets all basic telephony needs.
Dialog 4222 Office The Dialog 4222 Office is a desktop telephone with virtually all of the features you need in the office.
Dialog 4223 Professional This multi-featured professional model supports advanced system functions.
Dialog 4224 Operator The Dialog 4224 Operator telephones are specifically designed for the needs of operators working with MD110 and BusinessPhone PBXs.
Dialog 4225 Vision This multi-featured top model supports advanced system functions that are ideal for demanding and executive office usage.
