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ITU-T E-300 series Suppl. 6 (11/1988)

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Preparation of information to customers travelling abroad
This supplement lists the different information to be included in a pamphlet distributed to customers planning to travel abroad as a guidance for unusual telephone local procedures.
Citation: https://handle.itu.int/11.1002/1000/130
Series title:
Approval date: 1988-11-25
Approval process:WTSA
Status: In force
Maintenance responsibility: ITU-T Study Group 2
Further details: Patent statement(s)