5095 / 2019

39

هندسية

إتصالات ونظم معلومات

اختبارات

685 ج.م.

ETSI –TBR 38 /1998 Public surtched Telephone Network (PSTN) Attachment requirements for a terminal equipment incorporating an analogue handeset function capable of supporting the justified case service when connected to the analogue interface of the PST

تحديث

غير الزامى

33.020