Question 92 of 490 from exam 400-051: CCIE Collaboration

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Question

Refer to the exhibit.

SCCP IP Phone
Extension 1001

Step 1: Phone is on-hook
Step 2: User presses 201, digit by digit

SCCP Messages

Step 3: User presses the << soft key to delete the last digit entered
Step 4: User enters the remaining digits, 01, digit by digit

Step 5: User selects the Dial soft key

SCCP IP Phone Extension 2001

A user is performing a series of dialing steps on a SCCP IP phone (extension 1001) to call another SCCP IP phone (extension 2003)

Both phones are registered to the same Cisco Unified Communications Manager cluster.

Which user inputs are sent from the calling IP phone to the Cisco Unified Communications Manager, in the form of SCCP messages, after the user takes the phone off-hook? (The commas in the options are logical separators, not part of the actual user input or SCCP messages.)

Answers

A. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 0, 3.

B. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1, <<, 0, 3.

C. The IP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 2003 has been dialed.

D. The IP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 201<<03 has been dialed.

E. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1, <<, 2, 0, 0, 3.

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Explanations

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A. B. C. D. E.

Because sccp phones send digits DIGIT-by-DIGIT i.e.

it sends each digit in real time.

Link:-https://supportforums.cisco.com/document/87236/working-concept-sccp-sip-phones-and-dial-rules.

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