ＮＴＴ西日本｜公開情報＞接続手続き＞相互接続約款集＞電気通信事業法第33条第2項及び第7項に基づく第１種指定電気通信設備との接続に関する契約約款


(to so sei No. 99-2, 1999 or sai so sei No.2, 1999)
Effective July 1, 1999
Chapter I				Table of Contents	PDF
		General Provisions			PDF
		Article 1		Application of Articles of Agreement
		Article 2		Amendment of Articles of Agreement
		Article 3		Definitions of Terms
		Article 4		Charges and Technical Conditions, Etc., of Subscriber Line End Interconnection Carrier

Chapter II		Scope of Facilities to be Interconnected
	Part 1		Standard Points of Interconnection
		Article 5		Standard Points of Interconnection

	Part 2		Point of Interface (POI)
		Article 6		Purpose of Establishment of POI
		Article 7		Location of Establishment of POI
		Article 8		POI Establishment Range

	Part 3		Region Subject to Interconnection
		Article 9		Region Subject to Interconnection by NTT

	Part 4		Functions Provided by Interconnection
		Article 10		Functions Provided by Interconnection

Chapter II -2		Procedures for Installing POIs at NTT Communications Buildings, Etc.
		Article 10-2		Preliminary Inquiry
		Article 10-2-2		Application of the Proviso Provisions
		Article 10-3		POI Survey
		Article 10-4		Application for Establishment of POI
		Article 10-5		Entry to Installation Site of Equipment, Etc., Necessary for Interconnection by Applicant for Interconnection
		Article 10-6		Establishing POIs at Sites Other than NTT Communications Buildings
		Article 10-7		Securing Site for POI Establishment
		Article 10-8		Providing Information

Chapter III		Procedures for Conclusion of Agreement
	Part 1		Preliminary Survey
		Article 11		Application for Preliminary Survey
		Article 11-2		Providing Information
		Article 12		Acceptance and Order of Preliminary Survey
		Article 13		Preliminary Survey Response

	Part 2		Consultation Concerning Software Development Costs
		Article 14		Application, Etc., for Consultation Concerning Software Development Costs
		Article 15		Consultation Concerning Software Development Costs

	Part 3		Deleted
		Article 16 through Article 20: Deleted

	Part 4		Application for Interconnection
		Article 21		Application for Interconnection
		Article 22		Approval of Application for Interconnection

	Part 5		Application for Installation or Modification of Interconnection Facilities
		Article 23		Application for Installation or Modification of Interconnection Facilities
		Article 24		Submission of Materials Necessary for Application
		Article 25		Approval of Application for Installation or Modification of Interconnection Facilities
		Article 26		Conclusion of Individual Construction Contract
		Article 27		Changes, Etc., in Installation or Modification of Interconnection Facilities
		Article 28		Notice of Completion
		Article 29		Application for Installation or Modification of Other Interconnection Facilities

	Part 6		Application for Interconnection Software Development
		Article 30		Application for Interconnection Software Development
		Article 31		Approval of Application for Interconnection Software Development
		Article 32		Conclusion of Interconnection Software Development Contract
		Article 33		Cancellation of Interconnection Software Development
		Article 34		Notice of Completion

	Part 6 -2		Procedures for Interconnection to NTT's Optical Line Facilities
		Article 34-2		Line Facility Survey for Optical Interoffice Lines
		Article 34-3		Application for Interconnection to Optical Interoffice Lines
		Article 34-4		Application for Interconnection to Optical Subscriber Lines or Optical Intra-Office Transmission Lines
		Article 34-5		Entry in Case No Unused Cores are Available in Optical Line Facilities
		Article 34-6		Handling of Optical Signal Lead-In Facilities

	Part 7		Defects
		Article 35		Defects
	Part 8		Upgrades or Usage Cancellation of NTT's Telecommunications Facilities or Software
		Article 36		Upgrades of Telecommunications Facilities or Software by NTT
		Article 36 -2		Usage Cancellation, Etc., of Facilities Subject to Individual Management Through Application by a Contracting Carrier
		Article 36- 3		Disposal or Diversion for Other Purposes of Facilities Subject to Individual Management

	Part 9		Request for Other Works
		Article 37		Request for Other Works
		Article 37 -2		Circuit Adjustment Work for DSL Lines
		Article 37 -3		Request for Installation, Etc., of a DSL Line with Usage Restrictions in Terms of Line Length
		Article 37 -4		Circuit Adjustment Work, Etc., for Optical Subscriber Lines

Chapter IV		Standard Interconnection Period
		Article 38		Standard Interconnection Period
		Article 39		Period Calculation

Chapter V		Conclusion, Cancellation, Etc., of Agreement
		Article 40		Unit of Agreement
		Article 41		Assignment of Status under Agreement
		Article 42		Succession of Status under Agreement
		Article 43		Amendment of Agreement
		Article 44		Cancellation of Agreement by Contracting Carrier
		Article 45		Cancellation of Agreement by NTT
		Article 46		Termination of Agreement

Chapter VI		Obligations
	Part 1		Obligations
		Article 47		Confidentiality Obligation
		Article 48		Notification of Necessary Matters
		Article 48-2		Confirmation of Service Provision
		Article 49		Mutual Cooperation
		Article 50		Notification of Traffic, Number of Circuits, Etc.
		Article 50-2		Deleted
		Article 50-3		Notification of Transmission Systems for DSL Lines

	Part 2		Maintenance
		Article 51		Responsibility for Maintenance
		Article 52		Responsibility of Contracting Carrier to Identify Faulty Sections , Etc.

	Part 3		Approval, Etc., of Assignment, Etc.
		Article 53		Approval of Assignment Concerning Roaming, Etc.
		Article 53-2		Assignment, Etc., of Accounts Receivable to Third Party

Chapter VII		Patterns of Interconnection
		Article 54		Patterns of Interconnection

Chapter VIII		Handling of Important Communications
	Part 1		Measures to Secure Important Communications
		Article 55		Interruption of Interconnection Messages
		Article 56		Restriction on Interconnection Messages
		Article 57		Identification of Priority Communications

	Part 2		Handling Interconnection to Telephones for Emergency Calls
		Article 58		Handling Interconnection to Telephones for Emergency Calls

Chapter IX		Temporary Discontinuance, Suspension and Discontinuance of Interconnection, Etc.
		Article 59		Temporary Discontinuance of Interconnection
		Article 60		Suspension of Interconnection
		Article 61		Discontinuance of Interconnection
		Article 61-2		Suspension and Discontinuation of Work or Procedures, Etc.

Chapter X		Charges, Etc.
	Part 1		Charges and Expenses Concerning Works or Procedures
		Article 62		Charges, Etc.
		Article 63		Functional Classification of Interconnection Charges

	Part 2		Obligation to Pay Interconnection Charges
		Article 64		Obligation to Pay Flat-Rate Access Charges
		Article 65		Obligation to Pay Usage-Sensitive Access Charges
		Article 66		Obligation to Pay Network Modification Charges

	Part 3		Obligation to Pay Expenses for Works and Procedures, Etc
		Article 67		Obligation to Pay Expenses for Works
		Article 68		Obligation to Pay Expenses for Procedures
		Article 68-2		Obligation to Pay Amounts to be Borne for Optical Signal Lead-In Facilities

	Part 4		Calculation and Payment of Charges
		Article 69		Method of Calculation of Flat-Rate Access Charges and Network Modification Charges
		Article 70		Method of Calculation of Usage-Sensitive Access Charges
		Article 71		Measurement of Communications Hours, Etc.
		Article 72		Payment of Charges, Etc.
		Article 73		Deferred Lump-Sum Payment of Charges
		Article 73-2		Acceleration of Payment
		Article 74		Settlement of Access Charges, Etc.
		Article 74-2		Settlement Based on Actual Results of Interconnection Charges, Etc.
		Article 75		Retroactive Application of Interconnection Charges, Etc.

	Part 5		Deleted
		Article 76		Deleted

	Part 6		Handling of Discrepancy in Billed Amounts
		Article 77		Handling of Discrepancy in Billed Amounts
	Part 6-2		Deposits, Etc.
		Article 77-2		Deposits, Etc.

	Part 7		Additional Charges and Arrearage Interest
		Article 78		Additional Charges
		Article 78-2		Penalties Concerning Procedures for Interconnection to Optical Interoffice Lines
		Article 78-3		Penalties Concerning Procedures for the POI Installation, Etc., in NTT Communications Buildings, Etc.
		Article 79		Arrearage Interest

	Part 8		Assumption of Accounts Receivable
		Article 80		Assumption of Accounts Receivable

	Part 9		Charge Billing and Collection on Behalf of Other Carriers
		Article 81		Billing and Collecting User Charges on Behalf of Other Carriers

	Part 10		Handling of Fractions
		Article 82		Handling of Fractions

Chapter XI		Technical Conditions
		Article 83		Technical Conditions

Chapter XII		Damage Compensation
		Article 84		Limitation of Responsibility
		Article 85		Handling in Case of Cancellation, Etc.
		Article 86		Handling in Case of Business Suspension
		Article 87		Handling in Case of Discrepancies in Traffic or the Number of Circuits
		Article 88		Exemptions

Chapter XIII		Matters Concerning Responsibility to Users
		Article 89		Setting User Charges
		Article 90		Billing of User Charges
		Article 91		Special Rules Concerning Roaming, Etc.
		Article 92		User Charge Calculation
		Article 93		Responses to Complaints or Requests for Fault Repairs, Etc., from Users
		Article 94		Conditions for Providing NTT Subscriber Lines, Etc.

Chapter XIV		Cases in which POIs are Established within NTT Communications Buildings
		Article 95		Contract Concerning Installation or Maintenance of Equipment, Etc., Necessary for Interconnection
		Article 95-2		Entry for Attendance Purposes by Applicant for Interconnection, Etc.
		Article 95-3		Entry When an Applicant for Interconnection Undertakes Installation or Maintenance of Equipment, Etc., Necessary for Interconnection
		Article 95-4		Standard Lead-Time for the Installation of Equipment, Etc., Necessary for Interconnection
		Article 95-5		Restrictions on Work, Etc.
Chapter XIV-2		Settlement by Mediation or Arbitration
		Article 95-6		Settlement by Mediation or Arbitration

Chapter XIV-3		Deleted
		Article 95-7		Deleted

Chapter XV		Telephone Directory Listing and Directory Assistance for Contracting Carrier Subscriber Line Numbers, Etc., and Directory Information Database Registration and Directory Information Database Usage
		Article 96		Telephone Directory Listing of Contracting Carrier Subscriber Line Numbers, Etc.
		Article 97		Directory Assistance for Contracting Carrier Subscriber Line Numbers, Etc.
		Article 97-2		Directory Information Database Registration
		Article 97-3		Directory Information Database Usage

Chapter XVI		Miscellaneous
		Article 98		Providing Subscriber Information to Contracting Carriers with Individual Subscriber Contracts
		Article 98-2		Providing Subscriber Information to Contracting Carriers Receiving the Carrier Pre-subscription Function
		Article 99		Providing Subscriber Information to Contracting Carriers with Assumed Individual Subscriber Contracts
		Article 99-2		Providing Information Concerning Availability of Communications Building, Etc.
		Article 99-3		Providing Information Concerning the DSL Line, Etc.
		Article 99-4		Providing Other Information Relating to Interconnection to the DSL Line
		Article 99-5		Forms
		Article 99-6		Providing Information Concerning Optical Line Facilities
		Article 99-7		Providing Other Information Relating to Interconnection to Optical Line Facilities
		Article 99-8		Providing Information Concerning Interconnection Procedures and Basis of Calculations
		Article 99-9		Providing Information Relating to Customer Premises Optical/Electric Signal Conversion Equipment
		Article 99-10		Providing Information Relating to the Introduction of New Network Functions by the Equipment Subject to the Provision of Information on Network Functions
		Article 99-11		Providing Other Information Relating to the Introduction of New Network Functions by the Equipment Subject to the Provision of Information on Network Functions
		Article 100		Limitation of Approval
		Article 101		Reciprocal Conditions


Tables of Charges
	General Rules					PDF
	Table 1.			Interconnection Charges
		1.1.		Access Charges
		1.1.1		Application		PDF
		1.1.2		Charge Amounts
			1.1.2.1		Subscriber Line Transmission Function
			1.1.2.1-2		ISM Loop-Back Function
			1.1.2.1-3		Optical/Electric Signal Conversion Functions
			1.1.2.1-4		Optical Signal Multiplexing and Demultiplexing Functions
			1.1.2.2		Subscriber Switching Function
			1.1.2.2-2		Function to Use Transmission Equipment for Local Switch Interconnection
			1.1.2.3		Local Transmission Function
			1.1.2.4		Tandem Switching Function
			1.1.2.5		Interoffice Transmission Function
			1.1.2.6		Exclusive Transmission Function	PDF (West)
			1.1.2.6		Exclusive Transmission Function	PDF (East)
			1.1.2.6-2		Data Transmission Functions	PDF
			1.1.2.7		Signal Transmission Function
			1.1.2.8		Directory Assistance Function
			1.1.2.9		Operator Assistance Service Function
			1.1.2.10		Public Telephone Function
			1.1.2.11		Other Functions
			1.1.2.12		Inter-Terminal Transmission Function, Etc.
			1.1.2.13		Routing Transmission Function
			1.1.2.14		Synchronization Signal Supply Function
		1.2.		Network Modification Charges		PDF
		1.2.1.		Application
			1.2.1.1		Functions Subject to Network Modification Charges
		1.2.2. Charge Amounts
			1.2.2.1		Calculation Formula
			1.2.2.1-2		Charge Amounts in Case of Upgrades or Usage Cancellation of Facilities Subject to Individual Management
			1.2.2.1-3		Charge Amounts in Case Some Contracting Carriers Cancel the Usage of Facilities Subject to Individual Management that are Being Used by Multiple Contracting Carriers
			1.2.2.2		Ratio for Calculation of Fixed Asset Acquisition Value
			1.2.2.3		Ratio for Calculation of Annual Charges
	Table 2.			Expenses for Works and Procedures		PDF
		2.1 Expenses for Works
		2.1.1 Application
		2.1.2 Amount of Expenses for Works				PDF
			2.1.2.1		Expenses for Works
			2.1.2.2.		Expenses for Works Other than Expenses in 2.1.2.1
			2.1.2.3		Calculation Formula
			2.1.2.4		Work Unit Charges Applied to 2.1.2.3
		2.2.		Expenses for Procedures		PDF
		2.2.1		Application
		2.2.2		Amount of Expenses for Procedures		PDF
			2.2.2.1		Expenses for Procedures
			2.2.2.2		Expenses for Procedures Other than Expenses in 2.2.2.1
			2.2.2.3		Calculation Formula
	Table 2-2			Amounts to be Borne Under an Entrusted Construction Contract		PDF
		2-2.1		Calculation Formula
	Table 3.			Amount to be Borne under Entrusted Maintenance Contract, Etc.		PDF
		3.1		Amount to be Borne for Communications Buildings
		3.1.1		Calculation Formula
		3.1.2		Housing Charges for Installation Space Needed by Equipment, Etc., Necessary for Interconnection		PDF
			3.1.2.1		Application
			3.1.2.2		Charge Amounts(In the Case of NTT East)
			3.1.2.2		Charge Amounts(In the Case of NTT West)
		3.2		Amount to be Borne for Cable Tunnels or Conduits
		3.2.1		Application
		3.2.2		Charge Amount for Cable Tunnels or Conduits
			3.2.2.1		Charge Amount for Cable Tunnels (In the Case of NTT East)
			3.2.2.1		Charge Amount for Cable Tunnels(In the Case of NTT West)
			3.2.2.2		Charge Amount for Conduits (In the Case of NTT East)
			3.2.2.2		Charge Amount for Conduits(In the Case of NTT West)
		3.3		Amount to be Borne for Telephone Poles
	Table 4			Amounts to be Borne for Optical Signal Lead-In Facilities		PDF
		4.1		Amounts to be Borne for Reservation of Optical Signal Lead-In Facilities
		4.2		Amounts to be Borne for Removal of Optical Signal Lead-In Facilities
	Attached Table 1 Functions Provided by Interconnection					PDF
	Attached Table 2 Patterns of Interconnection					PDF
		1.		Application
		2-1.		Carriers Setting/Billing User Charges by Pattern of Interconnection with DSL Lines
		2-2.		Carriers Setting/Billing User Charges by Pattern of Interconnection with Other than DSL Lines
	Attached Table 3 Forms					PDF
	Supplementary Provisions					PDF
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	Collection of Technical Conditions [Translation omitted]
	Notes:
		1.	With respect to any difference in contents between NTT-East and NTT-West, such matters are described respectively.
		2.	Any matters that are entered in the Articles of Agreement of NTT-East only are highlighted with solid lines, and those matters that pertain only to NTT-West are highlighted with otted lines.