> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes. # rtcPeerConnection > Underlying RTCPeerConnection, for advanced use cases. ```ts get rtcPeerConnection(): RTCPeerConnection | undefined ``` Underlying `RTCPeerConnection`, for advanced use cases. ## **Examples** ```ts console.log(call.rtcPeerConnection); ``` > Underlying RTCPeerConnection, for advanced use cases.