Question 23/I - Existing Telematic and data transmission services on the
ISDN (new Question)

Considering that

existing Telematic and data transmission services are being
transferred on the ISDN,

the following should be studied:

1. What are the service requirements for interworking between
different networks used for the same service?

2. What are the service requirements resulting from integration of
different services?

3. What are the service requirements for multi-functional terminals?

4. What supplementary services should be used within the Telematic
and data transmission services?

Note - This Question should be studied in close conjunction with
Question 21/I.