When adding a SIP phone on U1900, you must ensure that ().

Question

Options

• AThe configured EID must be the same as the phone number.
• BThe EID can be digits only.
• CThe phone number can be digits or a combination of the asterisk (*) and digits.
• DThe EID is not required.

• A
  16% (10)
• B
  3% (2)
• C
  73% (47)
• D
  8% (5)

Explanation

Option C is correct because on the Huawei U1900, phone numbers support not only pure digits but also the asterisk (*) character combined with digits - this allows the system to accommodate feature access codes and flexible dial plans (e.g., *69, *21) as valid phone number formats.

Why the distractors are wrong:

• A is incorrect because the EID (Extension ID) and phone number are independent fields that serve different purposes; they do not need to match.
• B is incorrect because the EID is not restricted to digits alone - it can include alphanumeric or other allowed characters depending on configuration.
• D is incorrect because the EID is mandatory for SIP phone registration on U1900; it uniquely identifies the endpoint and is required for authentication.

Memory tip: Remember that * is used globally in telephony for feature codes (call forwarding, voicemail, etc.), so it makes sense that U1900 phone numbers must support * - while the EID is a system identifier with its own separate, broader rules.

No community discussion yet for this question.