3 dual-color line keys. 4 programmable context sensitive soft keys. Up to 4-way conferencing, and 8 dual-color BLF extension keys; 320x240 TFT color LCD; Dual switched auto-sensing, 10/100/1000Mbps Gigabit network ports, PoE, EHS ; Automated provisioning using TR-069 or AES encrypted XML configuration file, TLS/SRTP/HTTPS for advanced security and privacy protection; 

Grandstream GXP2140 Enterprise IP Telephone:   

4-line Enterprise HD IP Phone; 480x272 TFT color LCD; Automated provisioning using TR-069 or AES encrypted XML configuration file, TLS/SRTP/HTTPS for advanced security and privacy protection; Integrated real-time web applications [weather, currency, RSS news (pending), etc.]

Grandstream GXP1630 IP-Phone 2-lines, 8-BLF, Gigabit port:3 SIP accounts, 3 line keys, 4-way conferencing, 3 XML programmable context-sensitive soft keys; HD audio on speakerphone and handset; Dual-switched Gigabit ports, integrated PoE; 8 dual-colored BLF/speed dial keys; EHS support for Plantronics headsets; Up to 500 contacts, call history up to 200 records