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Question 206 - 350-801 discussion
Refer to the exhibit.
The SOP offer/answer has been completed successfully but there is no DTMF when users press keys.
What is the cause of the issue?
A.
DTMF was negotiated properly in these messages.
B.
Payload type 110 was negotiated rather than type 101.
C.
G.729 rather than G.711ulaw was negotiated.
D.
DTMF was not negotiated on the call.
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