The modern Telematrix 3500MWS is a part of the 3500 Series – Analog Corded Phone with 1 Line,  0 GSK, MW, Basic, Spkr in Cool Gray

Features:

• Available in 1 or 2-line configurations
• USB charging port optional
• Speakerphone or non-speakerphone
• 0, 3, 5 or 10 programmable Guest Service Keys
• Patented OneTouch voice mail retrieval technology
• Dual Neon / LED message-waiting light / SIP Standard voicemail messaging (VoIP phones)
• LED indicator lights for Speaker, Mute, & Hold keys, Line 1, Line 2 keys (2-line models only) 
• 3-way conference calling (2-line models only)
• Industrial grade construction with matte finish
• Non-slip base
• case: 10
• Available in Cool Gray or Black