CEIEC GSM reparierte drahtlosen Anschluss

GSM Voice Communication Provide feedback signal for payphone, able to connectToll Set for payment count Support reverse polarity Able to connect regular fixed telephone or cordless phone Support Mini-PABX to connect with GSM External back up batteries support 4 hours talking and 24 hours stand by Lock SIM card in software and hardware Support GPRS function Prefix IP number auto-dialing Support calls forbiddance for incoming and dialing Recent call records, short messages service (depends on the connected phone) Internal or external antenna Quad-band module support 850/900/1800/1900mhz