RTCRtpTransceiver: mid property

The read-only RTCRtpTransceiver interface's mid property specifies the negotiated media ID (mid) which the local and remote peers have agreed upon to uniquely identify the stream's pairing of sender and receiver.


A string which uniquely identifies the pairing of source and destination of the transceiver's stream. Its value is taken from the media ID of the SDP m-line. This value is null if negotiation has not completed.


WebRTC: Real-Time Communication in Browsers
# dom-rtptransceiver-mid

Browser compatibility

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See also