Service Switching Point (SSP)
Definition - What does Service Switching Point (SSP) mean?
A service switching point (SSP) is an end-point used by a telecommunications system such as telephone switches and performs call processing on calls that start, tandem or end at that site. SSPs can be connected to one another using Signaling System No.7 (SS7) links. SSPs may produce or receive SS7 messages for transferring call-related information. They may also send queries to service control points (SCPs) in order to discover the methods for processing a service request or call.
Techopedia explains Service Switching Point (SSP)
The majority of the SSP functions are executed by linking a computer to the pre-existing switches. Through the voice switch, the computer gets signals for activating the communication of unique SS7 messages. The SSPs can be used for functions like enhanced routing services, virtual private networks (VPNs), number portability, call screening, personal number service, tele-voting and Internet call management.
The advantages of SSPs include:
- Highly efficient switching in both conventional Time Division Multiplexing (TDM) as well as next-generation networks
- Packing density that's combined with a base of ready-to-employ applications
- Support for a blend of VOIP and TDM interfaces that function as a link between packet-based domains and TDM. This provides a straightforward changeover between traditional and next-generation networks.
- A blend of intelligent network services and call-handling features, which contributes to the productive use of network resources.
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