Asus TP300LA-C4156H Specifications download pdf (Page 103)

Notebook PC E-Manual

103

Overview

On 4th August 1998 the European Council Decision regarding the CTR 21 has

been published in the Ocial 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

justied case service) in which network addressing, if provided, is by means of

dual tone multi-frequency signalling.

Network Compatibility Declaration

Statement to be made by the manufacturer to the Notied Body and the vendor:

“This declaration will indicate the networks with which the equipment is designed

to work and any notied networks with which the equipment may have inter-

working diculties.”

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

notied networks with which the equipment may have inter-working diculties.

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 Notied Body of CETECOM issued several pan-European approvals

using CTR 21. The results are Europe’s rst 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.

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Asus TP300LA-C4156H Specifications Page 103