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seenagapeMay 25, 2016

Which of the following accurately describes DTMF OOB signaling?

A.
SIP phones use either RFC 2833 or KPML

B.
SIP phones cannot use OOB

C.
SIP trunk, are always sent DTMF In band

D.
SCCP and SIP phones both use KPML

E.
SIP trunks use KPML exclusively

In 642-278Exam 642-278

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