Type:Digital Cordless Phone Product name:Coin Payphone Products Desktop Sim Card Gsm Cordless Phone Supported Protocol:ITU-H.323 V4 and IETF SIP V2 Language:English, Spanish, or customized Color:Blue, orange, or customized for batch orders Coin Acceptance:15 different types Coin Box Capacity:1 litre / 2.7 liters WiFi Signal Range:200m (outdoor) / 30m (indoor) Function:public phone calls and wifi vending Housing Material:Steel casing Highlights:coin-learning ability,prevent coin stolen or fraud Show More