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2100 is a modular Voice Trunking Gateway that compresses and transports up to 16 E1 or T1 voice trunks over E1, T1, n x 64 kbps serial TDM, or IP links. Vmux-2100 employs G.723.1, G.729 Annex A and G.711 compression algorithms, together with RAD's unique TDMoIP® multiplexing, to transmit up to 496/384 voice channels, including transparent CAS and CCS, over a single E1/T1, n x 64 kbps serial or IP link. Vmux-2100 is unique in that it is a single device that can transmit compressed voice over both TDM and IP networks and can easily switch between them whenever this may be advantageous or if there is a link failure. Switching transmission between TDM and IP links does not require additional investments in equipment, and can be performed automatically upon link failure. Voice Activity Detection (VAD) and silence suppression allow Vmux units to dynamically allocate bandwidth for voice traffic. This results in very efficient bandwidth usage, allowing more bandwidth for data transport. The gateway detects, generates and relays DTMF/MFR2/MFC signaling. CAS is transparently transmitted end-to-end When transmitting over non-IP networks (E1, T1 or n x 64 kbps), the A2oMPLS multiplexing format can be used instead of TDMoIP®. The A2oMPLS header is smaller than the TDMoIP® header, saving a further 5% in bandwidth. This technique is compliant with the MPLS/Frame Relay Alliance 5.0 Implementation Agreement: I.366.2 Voice Trunking Format over MPLS. Vmux-2100 supports relay of Group III fax, as well as all common modem rates and standards. Modem transmissions are handled as voice band data. The user can enable/disable fax or modem relay; alternatively, the maximum fax transmission rate can be defined.
DATA STREAM TRANSFER Vmux-2100 supports the transfer of the following data streams that are not processed as voice.
Multiple HDLC channels Vmux-2100 supports up to four independent HDLC data streams per E1/T1. Each data stream may occupy one or more timeslots. All CCS protocols, such as SS7, ISDN and QSIG, are supported.
SS7 channels Vmux-2100 supports up to two independent SS7 data streams per E1/T1. Each data stream may occupy one or more timeslots.
Transparent channels Vmux-2100 supports the transparent connection between Nx64 channels over IP and TDM networks. This feature is supported between two Vmux-2100 units as well as between Vmux-2100 and Vmux-110. Up to 8 timeslots per E1/T1 can carry transparent data. |
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