- 1 Year Warranty-The Meridian 1 M3903 telephone is the ideal choice for office professionals and technical specialists. It supports up to four lines and/or features through the two self labeling keys at the top of the display. It provides access to additional features through the interactive soft keys below the display. The M3903 delivers the new productivity-enhancing Call Log Feature, which displays a list of the last 10 incoming calls as well as the last five outgoing calls made from your phone. For added customization, you can choose to list all incoming calls or just the unanswered calls, and you can instantly redial and call on the lists with a simple keystroke. Fixed feature keys also allow you to switch easily from the handset or handfree to headset use, personalize the phone using the options list, and quickly access your voice mail system. ************Please Read************* This phone will NOT work without a Meridian 1 phone system1 YEAR WARRANTYFirst 30 days - free shipping if item defective or DOA. After 30 days customer pays for shipping both ways.