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YD/T 1231-2002Technical specification for call transfer services through fixed network exchange (English PDF)

固定网交换机呼叫转接业务技术规范

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Level / Type

National · Recommended

Issue date

September 24, 2002

Implementation date

September 24, 2002

Scope

YD/T 1231-2002 is the English-translated version of 固定网交换机呼叫转接业务技术规范.

YD/T 1231-2002 is the Chinese industry standard "Technical specification for call transfer services through fixed network exchange". It was issued on September 24, 2002, and took effect on September 24, 2002. It is in force.

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Document preview — YD/T 1231-2002

Document data

1 Document data

Sector: Telecom (industry standard).

Date of issue: 2002-09-24.

Date of implementation: 2002-09-24.

Status: valid.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

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