NTT communication (NTT Com) the VoIP basis network of nationwide scale the enterprise 6 corporation which such as KDDI and NTT-ME has made that the negotiation which is directed to interconnect is done clear. Already, it includes Plala Networks and 2 corporations reaches to basic agreement, with the goal of within year it says that it is the schedule which does interconnect at the telephone call fee which is 3 minute 8 Yen.
When they are 3 minute 8 Yen, it probably is necessary to connect mutually? With it is to think, but. Being after all free, you can speak the charm of the IP telephone, is the big point and is the merit don’t you think?
Why, it did not mean that NTT communication connects network to direct, did connection charge occurs the “IP net” - the “fixed telephone network” - propose the “IP net”?
When the reason is expressed in one word, because “time is required”.
It makes the IP telephone and one binding, but to tell the truth protocol (standard) being different depending upon the enterprise, “fitting very much” the reason.