Each MSPP endpoint consists of a single MSPP filter. The MSPP service provides the following set of endpoints for sending and receiving data over a network interface:
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Endpoint type |
Description |
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Entry and exit point for simplex or full duplex PSTN data. |
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Entry and exit point for full duplex voice over IPv4 data streams (includes an RTP header within UDP packets). |
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Entry point for simplex voice over IPv4 data streams (includes an RTP header within UDP packets). |
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Exit point for simplex voice over IPv4 data streams (includes an RTP header within UDP packets). |
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Entry and exit point for simplex voice over IPv6 data streams (includes an RTP header within UDP packets). |
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Entry point for simplex voice over IPv6 data streams (includes an RTP header within UDP packets). |
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Exit point for simplex voice over IPv6 data streams (includes an RTP header within UDP packets). |
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Entry and exit point for full duplex T.38 fax over UDP data streams (IPv6 not supported). |
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Entry and exit point for full duplex voice data stream multiplexed according to the ThroughPacket algorithm (IPv6 not supported). |
The following illustration shows a typical MSPP RTP endpoint. A single RTP full duplex endpoint filter performs all the tasks required to send and receive voice data over the IP interface.