1、Support for DFOTA *, for eCall * and for DTMF. 2、Multi-constellation GNSS receiver available for applications. 3、Support 4G network mobile phone card rapid signal, more stable. 4、No need for ground wire line investment, use 4G mobile phone SIM card, easy to install. 5、Support international, domestic, local, fixed/mobile voice services. 6、Does not change the original dialing habits, the same as the ordinary telephone landline operating habits. 7、With reverse polarity signal, can be connected to the meter or use the computer meter. 8、Fully automatic IP, you can set multiple groups of IP. 9、Fixed long-distance automatic insertion of the calling IP, such as 17951, 17911, 193, etc. 10、International, domestic, local, and other called various types of permissions, preset local area number, local number and forbidden number. 11、Encryption settings, such as PIN code, PUK code encryption machine card lock. 12、LED display signal, standby status, working status, etc. 1 x Terminal Access Platform1 x Instruction Manual1 x Antenna1 x Telephone Line1 x User Manual Condition: 100% Brand NewItem Type: Terminal Access PlatformModule: EC25-EU Color: White Material: ABSCaller ID: YesInterface Form: RJ11Support Network: 4G NetworkVisual Function: NoneScope of Application: Wireless Access, SecurityNumber Storage Function: YesRecording Function: NoneSupport Frequency:FDD：B1/B3/B7/B8/B20/B28ATDD：B38/B40/B41WCDMA：B1/B8GSM：B3/B8Voltage: 100-240V