Panasonic KX-T7431 Phone Black

This is a solid digital telephone for use with selected Panasonic PBXs. It is easily programmed with a third party app. called Panasonic KX-TD Programmator available for download or via CD from an online vendor. Google will yield the site. Via a serial port on the PBX, both PBX and extension telephones can be fully configured using the reasonably friendly Programmator GUI. Panasonic's manuals for the PBX and the telephones are exhaustive and detailed. The phone itself can be manually programmed using a plastic overlay on the keyboard...but its tedious unless one does it for a living. Programming by either method presumes the installer/programmer knows wireline telephony basics.