ACR
Advanced Communication Riser

The AMD corporation, the 3Com corporation, the Motorola corporation,the NVIDIAcorporation and the VIA Technologies corporation etc. the riser card standard which ACR SIG by 10 corporations decides in 2000July.Specificationin order to installthe childcard (riser card) which had the function of LAN, audio, modem and USB etc. in the motherboard is decided.

It is riser cardstandardand the superior interchangeable standardof AMR(AudioModemRiser) which the Intel corporation announces in 1998, it is the standard which opposes to the succession standard"CNR " by the Intel corporation whichis announcedin 2000 February (Communication and Network Riser).

ACRthe higher rankof AMR has becomeinterchangeable, installingthe AMR cardis possiblein the ACR corresponding motherboard.It corresponds to the plugand play, after the installing it is possible to utilize directly. Be able to classify into 3 with the type of interface, as for "ACR Lite"networkinterface, "ACR Hub" has two network interfaces in addition to AMR standard. It is most significant standard, "ACR Xtream"hasthe packet interfaceIPB(Integrated Packet Bus) which can be controlled directly fromthe network portand the PCI bus which suppose mounting wireless LAN and ADSL modem.

ACR < Automatic Carrier Routing >

In order to utilize the telephone company which compares the telephone call charge of eachtelephone company,is cheap if possible, function of the telephone which automatically marks identification number.

The generally knownnew telephone & telegram of KDDI and indian Telecometc. (NCC)beingsomething whichis prepared in order to induce the user from NTT,NTT/KDDI/ it does only the indian Telecom fee comparison, new telephone company such as Tokyo telephone and fusion communication has not become the object of comparison.

In addition, discount service joining circumstance of each company because it is not considered, with the telephone call charge which includes discount service cannot selectthe always cheaptelephone company.

When it competeswith mylar in(it ismylar in, when the ACR priorityand mylar inplus is,the mylar insetting priority) with also the problem which was said occurs, as for ACR function to the telephone which presently is sold has stopped belonging.