# Working with SRT
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Elemental Live supports both inputs and outputs that use the SRT (secure reliable transport) protocol. 

Elemental Live can ingest a transport stream (TS) that is sent from an SRT caller. In this scenario, the upstream system initiates the handshake that precedes transmission. AWS Elemental Live is the SRT listener that accepts or rejects the handshake. The transport stream source can be encrypted with AES.

To work with SRT inputs, see [Ingesting SRT content](input-srt.md). To work with SRT outputs, see [Delivering TS using the SRT protocol](output-srt.md).