Learn about using PSTN Audio service call legs
The PSTN Audio service can operate on one or more call legs. For example, you have a single call leg when you record or deliver a voice mail, and you have multiple call legs when you join an Amazon Chime SDK meeting.
The following diagram shows the flow of a single-leg call.
The following diagram shows the architecture of a multi-leg call.
The following diagram shows the flow of a multi-leg bridged call.