Broadband Private Integrated Services
Network (B-PISN) - Inter-Exchange Signalling Protocol - Generic
Functional Protocol (B-QSIG-GF)
2nd edition (December 1999)
The latest edition of this Ecma Standard is available here.
You can download the previous replaced "historical" edition of this Ecma Standard, free of charge:
|ECMA-254 1st edition
||Acrobat (r) PDF file