This document introduces the use of the M3900 series Meridian digital telephone, including user manual, telephone control, telephone call function, dialing, answering calls, and using functions during calls.
This user guide provides an overview of the Meridian Digital Telephone series, describing the controls, terminology, and core call features for models M3901, M3902, M3903, and M3904. It covers making and receiving calls, call forwarding, conference calling, and hospitality functions such as automatic wake‑up.
The document also details display options, language selection, directory and call‑log management, and accessories like the Analog Terminal Adapter and Expansion Modules. It includes an index and reference codes for feature programming.