Which of the following statements are CORRECT when the number of CDRs exceeds the maximum number allowed in the CDR pool of the U1900? (Multiple Choice)

Question

Options

• AYou can select to overwrite earliest CDRs.
• BYou can select to discard new CDRs.
• CNew users may fail to register with the unified gateway.
• DAll users may fail to place calls.

• A
  84% (32)
• C
  5% (2)
• D
  11% (4)

Explanation

When the CDR pool on the U1900 reaches its maximum capacity, the system must decide what to do with incoming records. Options A and B are correct because they describe the two configurable overflow policies: overwrite the earliest (oldest) CDRs in a circular-buffer fashion, or discard new CDRs until space is freed. Both are legitimate administrative choices that operators can configure based on billing priorities.

Option C is wrong because CDR pool overflow is purely a storage/billing concern - it has no effect on the SIP registration process. New users can still register normally; registration state is managed separately from CDR logging.

Option D is wrong for the same reason: the CDR pool handles record-keeping, not call signaling or media processing. A full CDR pool does not block the call engine, so existing users retain the ability to place and receive calls (though those calls may go unrecorded depending on the overflow policy chosen).

Memory tip: Think of the CDR pool like a receipt printer with limited paper - when it runs out, you either print over old receipts (A) or skip printing new ones (B). Either way, the cash register (the call system) keeps working fine.

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