The Teledex E103IP-4GSK is a part of the E Series 1.8GHz VoIP Cordless with 1.8GHz, 1 Line, 1.8GHz, 1L, MW, Spkr 

Features:

• Available Frequencies: 1.8 GHz and 1.9 GHz
• Single or two-line speakerphones
• Supports up to four handsets, including one on the base and three remotes
• Up to seven (7) configurable Guest Service Keys
• Patented OneTouch voice mail retrieval
• LED indicator lights for Speaker, Mute, & Hold keys, Line 1 & Line 2 keys (2-line models only)
• Dual Neon/LED message-waiting light
• HAC/VCH (ADA) compliant handset volume boost
• Electronic 3-way conference* 
• Dual Port (10/100) for HSIA 
• RediDock available
• Available in Ash or Black
• Case: 10
• *Two-line only