S.I. No. 309/1997 - Telecommunications (Amendment) (No. 4) Scheme, 1997

1. Ordinary Quality Voice Bandwidth

(2),(3)

2 or 4 wire Analogue

(4)

ITU.T M.1040

36

24.99

2. Special Quality Voice Bandwidth

(2),(3)

2 or 4 wire Analogue

(4)

ITU.T M.1020

(5)

42

21.78

3. From 64 kBit/s Digital to 1984 kBit/s Digital

(2),(3)(6)

X21 bis

ITU.T G.821

42

5.28

4. 2048 kBit/s Digital Unstructured

(2),(3)(7)

ITU.T G.703

ITU.T G.821

48

15.47

5. 2048 kBit/s Digital Structured

(2),(3)

ITU.T G.703 and G.704 (excluding Section 5)

(8)

ITU.T G.821

(9)

N/A

N/A

(1)

The ITU.T recommendations referenced refer to the 1988 version. ETSI has been requested to carry out further work on standards for leased lines.

(2)

Minimum contract period is one year (shorter term contracts may be provided for international circuits).

(3)

Leased Lines may be ordered from Bord Telecom Éireann pie public offices details of which are to be found in the telephone directory.

(4)

M.1020 and M.1040 circuits are provided as 4 wire circuits.

(5)

The special quality voice circuit provided by Bord Éireann pie is supplied to M.1020 specifications.

(6)

The attachment requirements for terminal equipment to be connected to these leased lines are described in Common Technical Regulation 14 (CTR 14).

(7)

The attachment requirements for terminal equipment to be connected to these lines are described in CTR 12.

(8)

With cyclic redundancy checking in accordance with ITU.T G .706.

(9)

In service monitoring can facilitate improved maintenance by Bord Telecom Éireann plc.

(10)

This refers to the period counted from the date when the customer has made a firm request for a leased line, which 80% of all leased lines of the same type have been put through to the customer.

(11)

This refers to the time duration (in hours) within which 80% of leased lines of the same type are repaired. The time duration starts when a failure message is given to the appropriate unit in Bord Telecom Éireann pie and finishes when the line is re-established and in appropriate cases notified back to the user.

(12)

The description, above of the Typical Delivery Period and Typical Repair Time does not constitute a legally binding commitment on the part of Bord Telecom Éireann pie to deliver or repair leased lines within such periods or times.

PRESENT when the Common Seal of Bord Telecom Éireann pie was affixed thereto this 9th day of July, 1997.

A. KANE,

Director.

James G. Ryan,

Company Secretary,

Telecom Éireann pie,

St. Stephen's Green West,

Dublin 2.

RONALD BOLGER,

Director.

EXPLANATORY NOTE.

The purpose of this Scheme is to effect certain modifications to the Telecommunications Scheme, 1994.

S.I. No. 309 of 1997.

TELECOMMUNICATIONS (AMENDMENT) (NO. 4) SCHEME, 1997

BORD TELECOM plc, in exercise of the powers conferred on it by

Section 90

of the

Postal and Telecommunications Services Act, 1983

(No. 24 of 1983) hereby makes the following Scheme