The old IVS 2000 required a software disk to be loaded, plus a second one which increased the port size from 64 to 512 and added CCIS + ISDN PRI features. The IVR number, once obtained from NEC is loaded into CMD F83>0. This opened up the system to the added features and ports. Without it, you only could use one PIM (64 ports) and no CCIS or ISDN.
This is somerthing we did not have down in NZ/Aust, we got all the features and 512 ports by default. Later on when the IPS arrived, then we had software licences to take care off
This would probably be what we would call a feature upgrade and if you blew the system away and then expected it to know that it had certain options then more fool you. Sorry to put it so bluntly but what did you expect? It reverts to the purchased spec!
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