Portech MV-374 is a 4-channel VoIP-GSM gateway, which is responsible for converting GSM signal into VoIP (SIP) protocol. Used as a terminal server to route incoming calls from GSM network operators, VoIP communication, as well as a device for switching IP PBX, protocol-based SIP (RFC2543, RFC3261) with GSM. The device is compatible with IP PBX Asterisk, Elastix, Trixbox, Free PBX and registered on the SIP-server as a terminal device.
KOL Telecom
A brief intro on KOL TELECOM:
KOL TELECOM SERVICES LLC. is a USA-based and D&B registered provider of international wholesale as well as retail VOIP solutions. KOL TELECOM currently provides services to more than 100 international long distance carrie
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