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電話 Alphacom a100のPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Alphacom a100 14 ページ。 Executive range headsetphone

Facilities and Features

This apparatus has been approved for the use of the following facilities

Simple telephone facility with headset operation

Loop Disconnect or DTMf Signalling (selectable)

Mixed Mode signalling

Earth Loop and Timed break Recall.

Handset push to mute facility or optional push to speak (in handset mode only)

base unit latchable mute, with LED indication.

Wall or Desk mountable.

Ringer Off/LO/HI control

Ringer pitch control

pause entry in dialling sequence.

Message waiting.

Any other usage will invalidate the approval of the apparatus if as a result it then ceases

to conform to the standards against which approval was gained.