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ETSI ETR 147

Human Factors (HF); Usability checklist for Integrated Services Digital Network (ISDN) telephone terminal equipment
standard by European Telecommunications Standards Institute, 09/01/1994
Publisher: ETSI

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To provide a checklist for the usability of ISDN telephones concerning physical characteristics and dialogue design principles.

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Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) vers..

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Digital cellular telecommunications system (Phase 2+) (GSM); General Packet Radio Service (GPRS); Mo..

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Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) vers..

$7.00 $14.00

Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) vers..

$7.00 $14.00