Call control protocol: SIP(RFC-3261) or H.323 V4 or MGCP.   Echo cancellation: G.165/G.167 16ms. IP Address: PPPoE, DHCP client, Static IP.  LCD Display: Dialed Number, Coin Value, Remaining Credit, Reminding Message, Self-Diagnostic Message, and Revenue Information.   Function Keys: Voice...

Different Kinds of Coins  Acceptable  Distinguish Eight Kinds of Coins Optimum Refund Storage Five Coins at the Coin Chute Customize Colour Acceptable Detection Via Diameter, Thickness, Material No.1 Sales Model in Taiwan, HK and Africa Optional Credit Card...

GSM 900/1800 MHZ Transmit Power: GSM900 ~ 2 Watts, 1800 ~ 1 Watt Accommodate : One SIM Card, Max. 2 SIM Card (Option)  Different Kinds of Coins Acceptable  Distinguish Eight Kinds of Coins Optimum Refund Storage Five Coins at the Coin Chute Stylish Appearance Customize...

CDMA Frequency: 450, 800 or 1900 MHz Different Kinds of Coins Acceptable Optimum Refund Optional RMS Function Distinguish Eight Kinds Of Coins...