3G-gateway MV-3803G optimizes the telephone network, saving time and money spent on the telephone communication. Provides a link between cellular networks standard 3G / UMTS and IP-based networks without application any additional equipment.
Calls from mobile phones are addressed to the gateway, and then through the Internet (SIP-operator) they are transferred to fixed or mobile phones. (The long distance rates and tariffs of mobile operators are replaced by the SIP-operator tariffs (Internet telephony), which is several times cheaper (example: www.sipnet.ru)). Still cheaper connection is obtained by transfer call with than one gateway to the other over the Internet (without a SIP-operator).