The well-known RealtimeBridgeContext.Configuration key carrying the platform-native call
identifier for an inbound call the agent is answering (e.g. the Twilio Call SID the inbound
webhook delivered). Required to answer an inbound call; ignored for outbound.
The well-known RealtimeBridgeContext.Configuration key carrying the platform-native call identifier for an inbound call the agent is answering (e.g. the Twilio Call SID the inbound webhook delivered). Required to answer an inbound call; ignored for outbound.