Cisco

640-461 · Question #259

Which protocol is used between two Cisco IP phones once Cisco Unified Communications Manager Express connects a call?

The correct answer is B. RTP. See the full explanation below for the reasoning.

Question

Which protocol is used between two Cisco IP phones once Cisco Unified Communications Manager Express connects a call?

Options

AH.323
BRTP
CSCCP
DSIP

How the community answered

(48 responses)

A
13% (6)
B
79% (38)
C
2% (1)
D
6% (3)

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