Details：
1. After importing the numbers that need to be dialed into the cloud platform system, it is possible to dial the imported numbers without inserting cards. 2. Message function is supported. Parents can leave messages to students on WeChat official account. Students can enter their parents' number on the phone to log in to view the messages. 3. Three types of outgoing lines can be selected by oneself. Support built-in SIM card in the phone, and dial out the SIM card number. Support dialing out using the default SIP landline number on the cloud platform. Support self application for SIP account number dialing from the operator. 4. In standby mode, the homepage supports playing custom carousel posters, up to a maximum of ten posters.

Details：
Can log in through face swiping, card swiping, entering account password, and multiple login methods; You can choose to make a one click call to your family number, such as WeChat video call or voice call, and you can also input the number to make free calls; Parents can use WeChat to follow the campus phone official account and bind the student's IC card account, recharge the student's account, view the call record, add a family number, add a message, etc. After each call, the official account will also push a call message to parents on WeChat.

Details：
Students only need to insert their phone card into the card holder, and then insert the card holder into the phone to make a call; Support for making voice calls; It also supports making Volte video calls, and parents do not need to install any apps to directly connect to video calls

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.