Features: 1) FSK / DTMF caller ID2) Call pick up3) Call transfer4) OGM for auto-attendant mode5) Music on holding6) Single communication path 7)2 or 3 communication paths 8) Plastic casing9) Weight: 0.7kg10) Length: 19.5cm11) Width: 14cm12) Height: 3.5cmInner packing: Color boxesDimensions: 22.3 x 6 x 18.2cmOuter packing: CartonsCarton dimensions: 50 x 46 x 38cmQty/carton: 32pcsWeight/carton: 22kg Specifications 1 CO.; 8 extensions Caller ID Password Lock Outgoing Call Restriction Call Duration Control Do Not Disturbance Power Failure Transfer Single Communication channel OGM Recording Inner Packing: Color boxes Dimensions: 223 x 60x 18.2mm Outer Packing: 32 pcs/Carton G/W:22kg/carton Carton size(mm):500x460x380mm