TNAG-1779-FCO40-2539-Hong-Kong-international-telecommunications-1988 — Page 144

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EXHIBIT 2.7 THE CALL TO CUSTOMER INTERFACE BETWEEN THE INTERNATIONAL AND

LOCAL SERVICE

International Switchboards

INTERNATIONAL TRANSMISSION

Manual Service

Local Exchange

(Central Office)

Tandem Exchange

Toll Exchange

(67)

(5)

International Direct Dialling(IDD)

Message

International

Direct

Accounting Computer

Dialled

Data

(2)

HONG KONG TELEPHONE

Source: Hong Kong Telephone Company Limited

SATELLITE AND

OTHER RADIO TRANSMISSION

Gateway Exchange

(2)

T

SUBMARINE CABLE

CABLE & WIRELESS (HK)