Which of the following statements about IP phone configuration mode is INCORRECT?

Question

Options

• ANumbers can be automatically allocated through eSight.
• BNumbers need to be allocated only on U1900 series unified gateways.
• CThe account and password on the IP phone must be the same as those on the U1900 series
• DThe SIP server IP address on the IP phone must be set to the IP address of the U1900 series

• A
  7% (2)
• B
  86% (24)
• C
  4% (1)
• D
  4% (1)

Explanation

Option B is incorrect because number allocation is not limited exclusively to U1900 series unified gateways - numbers can also be automatically allocated through eSight (Huawei's network management platform), making both methods valid. The word "only" is what makes B false.

Why the distractors are wrong:

• A is a true statement - eSight does support automatic number provisioning for IP phones, which directly contradicts the "only" restriction claimed in B.
• C is true - SIP registration requires that the credentials (account/password) configured on the IP phone match exactly what is set up on the U1900 gateway; mismatched credentials cause registration failure.
• D is true - the U1900 acts as the SIP registrar/server, so IP phones must have its IP address configured as the SIP server to establish communication.

Memory tip: Watch for absolute words like "only" in exam options - they almost always signal an incorrect statement in networking questions, since enterprise systems typically provide multiple configuration paths (manual gateway config and automated management tools like eSight).

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