ATIS T1.616-1992

Integrated Services Digital Network (ISDN) - Call Hold Supplementary Service

Org/Number ID	ATIS T1.616-1992
Alternate Organization ID / number	ANSI T1.616-1992
Version(s)	1992
Bin #	0562
Comments
Status	Present
Record last updated	September 7, 2022, 1:57 pm

This is not the most recent edition of this standard.

Newer edition note: 2009; 2014; 2019