User’s Manual

68
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 di󱐯erences between the individual PSTNs provided
in di󱐯erent 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 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.