Merge commit 'f6c968395f9c78552763e8f2994a57cf5c6bc0c0' * commit 'f6c968395f9c78552763e8f2994a57cf5c6bc0c0': Extra parameters for sendBurstDtmf.
Merge commit 'f6c968395f9c78552763e8f2994a57cf5c6bc0c0' * commit 'f6c968395f9c78552763e8f2994a57cf5c6bc0c0': Extra parameters for sendBurstDtmf.