This standard is one of a series, which defines and describes supplementary services within the context of an Integrated Services Digital Network (ISDN). The interaction of this services with other ISDN services is also included. Formerly known as T1.647-1995(R2005).
ATIS 1000647.1995(S2020)
Original price was: $220.00.$110.00Current price is: $110.00.
ISDN – Conference Calling Supplementary Service
The Alliance for Telecommunications Industry Solutions , 05/01/1995
Pages: 53
