Which of the following statements are CORRECT about the voice conference function of U1960? (Multiple Choice)

Question

Options

• AIf a conference is not encrypted, phones can successfully join the conference regardless of
• BIf a conference is not encrypted, phones can successfully join the conference only when they have
• CWith SRTP enabled, IP phones can join conferences successfully regardless of whether the
• DWith SRTP disabled, IP phones can join conferences successfully regardless of whether the

• A
  81% (42)
• B
  8% (4)
• D
  12% (6)

Explanation

Options A and C are correct because they both describe scenarios where joining a conference has no blocking condition: an unencrypted conference imposes no encryption requirements on joining phones (A), and a phone with SRTP enabled carries the capability to participate in both encrypted and unencrypted sessions (C) - it holds the "master key" that works on all door types.

Option B is wrong because it contradicts A - an unencrypted conference has no encryption prerequisite, so adding a conditional ("only when they have...") is false. Option D is wrong because a phone with SRTP disabled cannot join an encrypted conference; the capability mismatch blocks entry, so "regardless of whether" is false for SRTP-disabled devices.

Memory tip: Think of it as a key-and-lock model - an unlocked door (unencrypted conference) lets anyone in, and a phone with SRTP is a master key that opens any door. A phone without SRTP is a plain key that only opens unlocked doors.

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