Using queuing at the edge with SigDigits, which option describes what "param sigdigits 3" on the bootstrap service accomplishes?

Question

Options

• APrefix three digits to the dialed number at the end.
• BSuffix three digits to dialed number.
• CTruncate three digits from dialed number.
• DConsider only the first three digits from the dial number.

• A
  2% (1)
• C
  95% (40)
• D
  2% (1)

Explanation

param sigdigits 3 instructs the bootstrap service to strip (truncate) three digits from the dialed number before passing it along for processing - this is how SigDigits manipulates the digit string at the edge during call routing. Option A is wrong because SigDigits does not add or prepend digits; it removes them. Option B is wrong for the same reason - no digits are appended to the end of the number. Option D is wrong because "considering only the first three digits" would describe a match/filter operation, not a truncation; sigdigits actively modifies the digit string, it doesn't simply inspect it.

Memory tip: Think of "sig" as "strip" - sigdigits N strips N digits from the dialed number. If you remember that SigDigits is a subtraction operation (not an addition or filter), you can immediately eliminate A, B, and D.

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