Universal Power Supply for SPIP 321, SPIP 331, SPIP 335 and SPIP 450. 24V, 0.5A, Continental Europe power plug

1 line SIP phone, no PoE, PSU included, White 

Supported by Grandstream's DP750 DECT Base Station; 5 DP720 handsets are supported by each DP750; Supports a range of 300 meters outdoors and 50 meters indoors from the DP750 base station; Supports up to 10 SIP accounts per handset; Full HD audio on both the speakerphone and handset; 3.5mm headset jack, 3-way voice conferencing

Grandstream GXP1615 IP-Phone PoE: 1 SIP account, 2 line keys, 3-way conferencing, 3 XML programmable context-sensitive soft keys. Dual-switched 10/100 mbps ports. EHS support for Plantronics headsets. Up to 500 contacts. Call history up to 200 records

Grandstream GXP1628 IP-Phone 2-lines, 8-BLF, Gigabit port:2 SIP accounts, 2 line keys, 3-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

Grandstream GXP1625 2 line IP-Phone PoE:2 SIP accounts, 2 line keys, 3-way conferencing, 3 XML programmable context-sensitive soft keys. Dual-switched 10/100 mbps ports, integrated PoE on GXP1625. HD audio on speakerphone and handset. EHS support for Plantronics headsets. Up to 500 contacts, call history up to 200 records. 

Grandstream GXP1620 2 line IP-Phone No-PoE:2 SIP accounts, 2 line keys, 3-way conferencing, 3 XML programmable context-sensitive soft keys. Dual-switched 10/100 mbps ports. HD audio on speakerphone and handset. EHS support for Plantronics headsets. Up to 500 contacts, call history up to 200 records.