Description:The Vtech VS601 is a ErisTerminal SIP phone equipped with the latest DECT 6.0 digital technology, with built-in speakerphone and 3-party conferencing. The handsets support up to 4 SIP lines/accounts plus two soft keys for simple call handling. The VS601 handset has 200 name phonebook memory.The Orbitlink Wireless Technology allows clear conversations while on roam. The handset other features includes friendly interface, 10 selectable ringtones, backlit display, backlit keypad, LED status indicator, message waiting indicator and intercom.Features: Utilizes DECT 6.0 Technology HD Voice Clarity SIP Voice Over Internet Protocol (VoIP) Caller ID Half-duplex speakerphone 90 x 65 Backlit Display Backlit Keypad LED Status Indicator Name / Number Caller ID Memory 200 Station Phone Directory / Dialer Call Log Call Block 3-Way Conferencing Call Forwarding Message Waiting Indicator 10 Selectable Ringtones Volume Control Intercom Call Transfer 2 Softkeys For Feature Integration w/ M1 System Redial Mute Flash Do Not Disturb 7 days standby/7 hours talk time Up To 7 Days Standby Orbitlink Wireless Technology Call History Call Paging Call Pickup Fail Over Support Server Redundancy Navigational Pad