E1/T1
A European format for digital transmission. E1 supports signals at 2 Mbps (32 channels at 64Kbps, with 2 channels reserved for signaling and controlling), versus the T1, which carries signals at 1.544 Mbps (24 channels at 64Kbps).
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.
NorthWest Voip
We recognize that in today`s competitive business environment, you need to optimize communication with your customers while driving down costs. Northwest VOIP was created to serve this need and to offer customers an alternative to large unresponsive phone
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