A call shop is a business that provides physical phones for the purpose of making long-distance telephone calls. There are two main types of call shop payment methods; prepaid and postpaid.
GoIP 16 is a sixteen channel VoIP-GSM gateway, designed to provide high quality communication between mobile networks of GSM 900/1800/1900/850 standards and the networks of IP-telephony. By supporting SIP-protocol, GoIP 16 is compatible with most IP PBX and supports SIP protocol from all popular manufacturers. This feature allows you to quickly and cost-effectively set telephone communication system in an office.