Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Advice of charge supplementary services ISO/IEC 15050:1997
Publication date:
May 15, 1997
95.99Withdrawal of Standard
Mar 21, 2003
General information
95.99Withdrawal of StandardMar 21, 2003
ISO/IEC
ISO/IEC JTC 1/SC 6
Telecommunications and information exchange between systems