Fig.1 Configuration of the FICS-1 storage-and-conversion facsimile communication system

Configuration of the FICS-1 storage-and-conversion facsimile communication system

Copyright © IEICE (The Institute of Electronics, Information and Communication Engineers) 2006, All Rights Reserved.

Assuming the analog Minifax (MF-1) terminals, the FICS-1 system manages subscriber information such as FAX telephone number at tandem switches dedicated for facsimile services (TS-FX). On receiving a call having the prefix specified for facsimile services, the local switch (LS) connects with a TS-FX and uses a common signaling channel to contact a TS-FX on the receive side to ask whether the other party is a subscriber to the facsimile service and whether the power of the other party’s terminal is turned on. Storage and conversion equipment (E-STOC) receives the facsimile signal and stores it after digitizing it and encoding it in redundancy-reduction coding scheme. The facsimile signal is then transferred at high speed to the other party’s E-STOC over a digital transmission channel and stored again. This E-STOC now calls the destination FAX via a TS-FX without ringing a bell and forwards the facsimile signal after decoding and converting it to an analog signal.

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