The SI3000 Signaling and Media Gateway (SMG) brings highly scalable and flexible PSTN-to-IP transport and signaling functionality to a VoIP network.
Media Gateway
The media-gateway functionality ensures that the PSTN channel content is converted into a stream of data packets by using various VoIP codecs.
Signaling gateway
The signaling gateway provides the transformation of legacy TDM signaling (SSN7, DSS1 and V5.2) into IP-based session-control protocols (M2UA, M3UA, M2PA, IUA and V5UA) for communication with the call server. CAS 2VSK signaling transmission over an IP network to the call server is supported by using unique and innovative mechanisms.
Media Server
The Media Server (MS) bundles the offer for the carrier with the following services:
- it connects subscribers to a conference call, regardless of the network type (IP and TDM),
- it enables DTMF detection and generation,
- it provides voice announcements, interactive voice responses, speech recognition and voice messaging.
Benefits
- Additional IP revenues from the legacy network
- Eliminates the need for a separate media server or application server for simple applications
- Easy and cost-effective extension of IP-based services to legacy users
- Integrated signaling and media-gateway functionality with a media server on a single carrier-grade platform