in Swift/KVSiOSApp/ChannelConfigurationViewController.swift [351:358]
func signalClient(_: SignalingClient, senderClientId: String, didReceiveCandidate candidate: RTCIceCandidate) {
print("Received remote candidate from [\(senderClientId)]")
if !senderClientId.isEmpty {
remoteSenderClientId = senderClientId
}
setRemoteSenderClientId()
webRTCClient!.set(remoteCandidate: candidate, clientId: senderClientId)
}