Private Integrated Services Network (PISN)
- Inter-Exchange Signalling Protocol - Wireless Terminal Call
Handling Additional Network Features (QSIG-WTMCH)
2nd edition (December 2001)
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-304 1st edition
||Acrobat (r) PDF file