Land Line Phone

Gsm standard high-quality voice services (fr, efr, hr speech coding) support emergency call service supplementary services: such as emergency calling, caller id, call forwarding, call waiting, call hold, three-way calling support short message fm large-capacity phone book (200) secondary dial dtmf support user personalization volume setting ringing tone sung live support screen backlighting functions provided tnc antenna interface can be connected to indoor antenna standard tnc antenna interface can be connected to indoor and outdoor antenna offers a variety of security solutions, such as lock network, lock card, lock cell, interlock machine card (optional) product specifications dimensions (l × w × h): 196 mm × 152 mm × 51 mm weight: less than 700g (including battery) switching power supply: ac: 100v ~ 240v; dc: 5.00v, 0.65a backup battery: type: nimh; capacity: 3.6v 600mah, typical talk time: (according to your network environment) 2.5 hours (battery capacity 600mah); typical standb