MetaSwitch:Carrier-class softswitch and applications solutions

MetaSwitch delivered the best combination of native IP capabilities, residential and business-class features, and scalability. John Stadter, President, ComSpanUSA

SIGNALING GATEWAY

The Signaling Gateway provides the interface between the MetaSwitch Class 4/5 Softswitch and the SS7 network.

MetaSwitch's SG-series of signaling products include the

SG1200 signaling interface card, with 8 T1 interfaces, which can be deployed within the VP3510 Integrated Softswitch or MG3510 Media Gateway, for integrated SS7 functionality
SG2510 Signaling Gateway, a standalone medium capacity chassis that can accommodate up to 6 SG1200 cards for maximum 48xT1 capacity.
SG3510 Signaling Gateway, a standalone high capacity chassis that can accommodate up to 16 SG1200 cards for maximum 128xT1 capacity.

The SG3510 supports up to 128xT1 of SS7 signaling.

The SG2510 supports up to 48xT1 of SS7 signaling.

The SG1200 card offers 8xT1 of SS7 signaling.

The SG1200 card implements the MTP1 and MTP2 layers of the SS7 protocol, with up to 128 channels supported on each card. The MetaSwitch Call Agent handles all the processing at the MTP3 layer and above, including TCAP/AIN. M2UA over SCTP is supported for backhaul of the SS7 signaling over IP to the Call Agent.

SS7 A-links are typically configured across two or more cards for load-sharing. In the case of link or card failure, this allows for redundancy with seamless re-routing to the remaining active links.

When deployed as part of a Media Gateway or Integrated Softswitch configuration, any spare timeslots not used for SS7 can be used for trunking, providing additional media processing capacity and ensuring that no chassis real estate is wasted.