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Product & Solution > Overview > VoIP Solution
> SoftSwitch
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SoftSwitch(SSW) processes various types of calls and supplementary services based on the IP. SSW provides same services as the existing circuit-based switch and also accommodates next-generation IP-based protocols to provide more services. SSW provides both voice service and multimedia services. SSW controls SG and MG/TG to provide various services and interworks with various types of external networks.
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SG |
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SG stands for signaling gateway. SG enables IP-based SSW to interwork with existing SS7 network. SG interworks with SSW through SIGTRAN, and supports various forms of interworking including M2UA, M3UA, and SUA. |
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MG/TG |
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MG/TG stands for media gateway and trunk gateway respectively. MG/TG provides E1 interface for TDM-type interworking with voice network as well as ATM, PRI, and other interfaces, if necessary. SSW controls MG/TG through Megaco/H.248. |
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Call processing, number translation, routing, resource management
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Subscriber data management
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SIP call processing
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ISUP protocol processing
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MG and TG voice announcement device control (Megaco/H.248)
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SG control (through SIGTRAN)
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Conferencing
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Interworking with Intelligent Network (INAP, CAMEL, WIN)
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Provision of supplementary services
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Easy evolution to 3GPP IMS or 3GPP2 MMD network
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