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ノートパソコン ユーザーマニュアル
内蔵モデムの適応規格
(規格/プロトコルなど原文掲載)
The Notebook 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 dierences between the individual PSTNs provided
in dierent 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
rst instance.
Overview
On 4th August 1998 the European Council Decision regarding the CTR 21
has been published in the Ocial 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
justied case service) in which network addressing, if provided, is by means
of dual tone multifrequency signalling.
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