| IAudioStream Events | 
The IAudioStream type exposes the following members.
 Events
Events| Name | Description | |
|---|---|---|
|  | OnDirectionChange | 
            Raised when the signalling state changes.
            (Inherited from IStream.) | 
|  | OnReceiveDtmfTone | 
            Raised when a DTMF tone is received.
             | 
|  | OnReceiveDtmfToneChange | 
            Raised when the received DTMF tone changes.
             | 
|  | OnSendDtmfTone | 
            Raised when a DTMF tone is sent.
             | 
|  | OnSendDtmfToneChange | 
            Raised when the sent DTMF tone changes.
             | 
 See Also
See Also