Shortly can we say :
- IP Gateway includes one PABX and opens for both traditional TDM extensions as well as IP extensions on WAN.
- IP trunk includes more than one PABX interconnected to form a private network. (over TCP/IP of course, instead of CCS)
For the latter, may we with the new Ericsson IP trunk define VPNoIP. Do we need IN nodes as in traditional VPNoCCS ?
Anyone to complement on this issue ?