Future Telecommunication System Architecture and Services
Data Communications, October, 1996, pg. 24 "Internet Voice: Talk It Up", reports
"PTT Telecom Finland Ltd. is planning to use Ericsson's new gateway - unofficially know as the LANphone - to shunt voice calls from an ISDN PRI link across any IP network - whether it's running over frame relay, X.25, or ATM. Management will be via SNMP."
Lots of others: Phonet Communications Ltd. (Herzlia, Israel) - about their LAN-based phone system called Etherphone and a separate gateway called Ethergate.
==> Internet Phone interoperabilityconsortia + http://www.imtc.org + Voice over IP Forum