GSM Voice Communication; Quad-band module support 850/900/1800/1900mhz
GSM Voice Communication
Provide feedback signal for payphone, able to connect Toll 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
CEIEC GSM FIXED WIRELESS TERMINAL
