SupportSIPSupport2SIPservers serverrunningatthesametime.Support3settingsstorage,switchbykeypad.SupportmajorG7.xxx(711a/u,723,729 )CODEC.*CallHold,CallForward,CallTransfer.*E.164dialplanandcustomizeddialrules.*Configurablejitterbuffersize.*80groupsincoming outgoingcallsmemoryreviewed、stored.*PhoneBookwith100groupsmemory.*Userdefineringtone,CallIDdisplay.*Static/DynamicWAN-IP-Addressing,SupportPPPoE.*Safemodeprovidereliability.*SupportPOE(PowerOverEthernet)(Option).*Adjustableuserpasswordandsuperpassword.*Configurefiledownload,uploadandupdate/upgradebyFTP,HTTPandTFTP.