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The Portable Desktop PC with internal modem model complies with JATE (Japan), FCC (US,
Canada, Korea, Taiwan), and CTR21. The internal modem has been approved in accordance with
Council Decision 98/482/EC for pan-European single terminal connection to the public switched
telephone network (PSTN). However due to differences between the individual PSTNs provided in
different countries, the approval does not, of itself, give an unconditional assurance of successful
operation on every PSTN network termination point. In the event of problems you should contact
your equipment supplier in the first instance.
Overview
On 4th August 1998 the European Council Decision regarding the CTR 21 has been published in the
Official Journal of the EC. The CTR 21 applies to all non voice terminal equipment with DTMF-
dialling which is intended to be connected to the analogue PSTN (Public Switched Telephone
Network).
CTR 21 (Common Technical Regulation) for the attachment requirements for connection to the
analogue public switched telephone networks of terminal equipment (excluding terminal equipment
supporting the voice telephony justified case service) in which network addressing, if provided, is by
means of dual tone multifrequency signalling.
Network Compatibility Declaration
Statement to be made by the manufacturer to the Notified Body and the vendor: "This declaration
will indicate the networks with which the equipment is designed to work and any notified networks
with which the equipment may have inter-working difficulties"
Network Compatibility Declaration
Statement to be made by the manufacturer to the user: "This declaration will indicate the networks
with which the equipment is designed to work and any notified networks with which the equipment
may have inter-working difficulties. The manufacturer shall also associate a statement to make it
clear where network compatibility is dependent on physical and software switch settings. It will also
advise the user to contact the vendor if it is desired to use the equipment on another network."
Up to now the Notified Body of CETECOM issued several pan-European approvals using CTR 21.
The results are Europe's first modems which do not require regulatory approvals in each individual
European country.
Non-Voice Equipment
Answering machines and loud-speaking telephones can be eligible as well as modems, fax machines,
auto-dialers and alarm systems. Equipment in which the end-to-end quality of speech is controlled by
regulations (e.g. handset telephones and in some countries also cordless telephones) is excluded.