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ITU-T E Suppl.9 (10/1976)

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An experimental test design for the determination of inexperienced user difficulties in setting up international calls using nationally available instructions
Approval date: 1976-10-08
Approval process:WTSA
Status: Superseded
Maintenance responsibility: ITU-T Study Group 2
Further details: Patent statement(s)
Ed. ITU-T Recommendation Status Summary Table of Contents Download
3 E-300 series Suppl. 5 (10/1984) In force
2 E-300 Suppl. 5 (11/1980) Superseded - - Not available
1 E Suppl.9 (10/1976) Superseded - - Not available