# Define RTSP Protocol parameters

The RTSP Protocol Agent allows RTP (Real-time Transport Protocol) and RTCP (Real-time Control Protocol) media streaming connections initiated with RTSP through the engine.

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The RTSP (Real Time Streaming Protocol) network control protocol is used for establishing and controlling media sessions between clients and media servers. On engines, the Protocol Agent also handles NAT modifications to the protocol payload.

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## Steps

1. In the properties of a custom Service you have created, click Select next to the Protocol field and select RTSP.
2. On the Protocol Parameters tab, set the parameters for the Protocol.
3. Click OK.