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：
Hands-free mode, ordinary phone use; RJ11 interface, built-in power adapter, AC220V power supply; when the called party rings, the loudspeaker will ring; support sound and light alarm, called state warning lights flashing, alarm ring work; support 4 groups Speed dial button, one-key dialing can be realized after hands-free; compatible with various digital or analog program-controlled switches, and IAD gateway equipment; support automatic detection of busy tone and automatic answering of the called ring
Details：
Hands-free mode, ordinary phone use; RJ11 interface, built-in power adapter, AC220V power supply; support sound and light alarm, called state warning light flashes, alarm ring work; support 4 groups of speed dial keys, one-key dialing can be realized after hands-free ; Compatible with a variety of digital or analog program-controlled switches and IAD gateway devices; support automatic detection of busy tone and automatic answering of the called ring; support external explosion-proof speakers and explosion-proof warning lights
Details：
Hands-free mode, ordinary phone usage; RJ11 interface, built-in power adapter, AC220V power supply; when the called party rings, the loudspeaker will ring; support 4 sets of speed dial keys, hands-free can realize one-key dialing; compatible with various Digital or analog program-controlled switches, and IAD gateway equipment; support automatic detection of busy tone, automatic hang-up, and automatic answering of called ringing; support external explosion-proof speakers and explosion-proof warning lights
Details：
Hands-free mode, ordinary telephone use; RJ11 interface, built-in power adapter, AC220V power supply; support 4 sets of speed dial keys, one-key dialing can be realized after hands-free; compatible with various digital or analog program-controlled switches, and IAD gateway devices; support Detects busy tone and automatically hangs up, and the called party rings and automatically answers; supports external explosion-proof speakers and explosion-proof warning lights
Details：
Handset mode, ordinary telephone usage; RJ11 interface, built-in power adapter, AC220V power supply; when the called party is ringing, the loudspeaker will ring; support sound and light alarm, called state warning lights flashing, alarm ring work; support 3 groups of speeds Dial the key, you can realize one-key dialing after lifting the handset; compatible with various digital or analog program-controlled switches, and IAD gateway equipment; support automatic detection of busy tone and automatic answering of the called ring
