【国外标准】 Business TeleCommunications (BTC) - Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S) - Terminal equipment interface; English version ETS 300453:1996
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2025-06-05
- DIN ETS 300453
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标准号:
DIN ETS 300453
标准名称:
Business TeleCommunications (BTC) - Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S) - Terminal equipment interface; English version ETS 300453:1996
英文名称:
标准状态:
废止-
发布日期:
2001-10-01 -
实施日期:
出版语种:
- 其它标准
- 上一篇: DIN ETS 300452 Business TeleCommunications (BTC) - Special quality voice bandwidth 4-wire analogue leased line (A4S) - Connection characteristics and network interface presentation; English version ETS 300452:1996
- 下一篇: DIN ETS 300581-7 European digital cellular telecommunications system - Half rate speech - Part 7: ANSI-C code for the GSM half rate speech codec; English version ETS 300581-7:1996
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