Details：
The phone needs to have a built-in mobile phone card (with data and calls) or an IoT card to use it. If you use a telecom 4G card, you need to activate the high-definition voice call function; you can set free rates and packages; real-time display of phone status; card issuance, card replacement, loss reporting, and recharge; support for WeChat; support for mobile apps; query call records, etc. Features.

Details：
AFT-BG-05A plug-in card phone adopts wireless 4G full Netcom signal transmission mode. When using this phone to make a call, you need to put the mobile phone card in the special card sleeve, and then insert the card sleeve into the card slot of the phone. After the signal detection is normal, you can make a call. Mainly suitable for areas where mobile phones are not allowed. Support lock network lock card.

Details：
Users can only dial numbers in the whitelist system, and non-whitelist numbers are prohibited from dialing. You can enter whitelist numbers in batches, set the validity period of the numbers, add packages that are charged monthly/quarterly/yearly, etc., and automatically stop the service when they expire.

Details：
you can set free rates, packages; real-time display of phone status; card issuance, card replacement, loss report, recharge; set family number; support WeChat terminal; query call records, etc. Features.

Details：
The phone needs to have a built-in mobile phone card (with data and call charges) or an Internet of Things card to use. If you use a telecom 4G card, you need to activate the high-definition voice call function; you can set free rates and packages; real-time display of phone status; card issuance, card replacement, loss report, recharge; support WeChat terminal; support mobile app; query call records, etc. Function.

Details：
The phone has a built-in mobile phone card, and the user can hold the card and insert the card to dial. Support 13.56M radio frequency card, ID card, CPU card, IC card; support network lock, lock operator, encryption card function, prevent illegal card use.