Question 8/I - Mobile telephone, telegraph, Telematic and data services
(amalgamation of and revised Questions 6/I and 16/I, 1985-1988)

Considering

(a) Resolution No. 201 of the World Administrative Radio Conference
(Geneva, 1979) relating to operational provisions, charging and
accounting for public correspondence in the mobile services;

(b) the existence of a world-wide maritime mobile satellite system
(INMARSAT);

(c) development of aeronautical public correspondence services (see
Recommendation F.125);

(d) the planned introduction of land mobile satellite systems;

(e) studies carried out by other competent CCITT Study Groups, the
CCIR and INMARSAT, which require collaboration with Study Group I;

(f) the desirability of maintaining compatibility between the numbering,
selection and operational procedures used to access the various
mobile services;

(g) the development and introduction of the Global Maritime Distress
and Safety System (GMDSS) in relation to ships' equipment and
personnel;

(h) the need to review as a matter of urgency operational procedures
for the maritime satellite data transmission service in the light of the
recent development in this field;

(i) that the World Administrative Telegraph and Telephone Conference
will be considering proposals that may affect provisions in the
Recommendations concerning mobile as well as terrestrial traffic;

(j) that the World Administrative Radio Conference for the Mobile
Services (MOB-87) adopted a partial revision of the Radio Regulations
which may affect operational, numbering and selection procedures for
the maritime mobile services;

(k) the rapid development of Integrated Services Digital Network (ISDN),

What new Recommendations or what additions to or modifications of
existing Recommendations are needed relating to:

1. new or revised mobile telephone services;

2. the radiotelegram, radiotelexogram and radiotelex services defined
in Recommendation F.110;

3. other possible international public correspondence services
analogous to the terrestrial telegraph, Telematic and data services (or
supplementary services) defined or to be defined by Study Group I;

4. provision of the services mentioned in 1 and 2 not only in the
maritime mobile service and the maritime mobile-satellite services but
also in international land mobile and aeronautical mobile services to
the
extent that procedures for handling traffic are concerned;

5. international access to or from the various mobile services to the
terrestrial services, such as telex;

6. possible provisions to take account of charging differentials, off-
peak charging, discrimination between services provided, the use of
multiple station and accounting identities and for the access of the
various mobile telegraph and data services to or from the
corresponding international services;

7. possible consequential changes required to Recommendation F.110
to take account of any improvements in Recommendation D.90
concerning accounting for radio traffic between administrations;

8. operational procedures for the maritime satellite data transmission
service;

9. progress towards automatic service operation;

10. Quality of Service as perceived by the users;

11. any decisions of the World Administrative Telegraph and Telephone
Conference requiring amendments or additions to the
Recommendations regarding mobile services?

Note 1 - Further to considering e) above, collaboration with CCITT Study
Groups II, III, VII, IX and XI and with the relevant CCIR Groups is
necessary in studying this Question.

Note 2 - In general, CCITT is responsible for the traffic handling,
tariff
and accounting aspects within the mobile services, whereas the CCIR
is responsible for the technical transmission aspects. Various technical
CCITT Study  Groups (IV, VII, IX, XI) are involved in the technical
interworking arrangements between the mobile systems and the
terrestrial networks.