... .42bis/MNP5 protocols 3.Compliant with V.17,V.29 and V.27ter Group3 fax protocols 4.Up to 56K data ... download,48K data upload,and 14.4K fax communication 5.provide Quick connect and Modem-on-Hold features 6.SUpport ... dialing, Auto answer,Auto retrain 7.Support Caller ID and distinctive ring detect, Auto format/speed sensing 8.DataData/Fax/ ...