This supplement to American National Standard for Telecommunications – Integrated Services Digital Network (ISDN) – Call Park Supplementary Service, ATIS-1000653, revised the standard to improve and clarify the standard based on related advances in other standards bodies. Formerly known as T1.653.a-1998.
- Published:
- 12/01/1998
- ANSI:
- ANSI Approved
- Number of Pages:
- 4
- File Size:
- 1 file , 430 KB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
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