This Recommendation defines three packages: dmi@ xdmi and edmi@ that extend the dd@ xdd and edd packages@ respectively. The new packages support a mechanism to provide information to the MGC regarding the dialling method (DTMF or decadic pulses) associated with the detected digit or digitmap. The DTMF detection packages dd@ xdd and edd are commonly used to not only detect DTMF digits but also decadic pulsed (i.e.@ loop disconnect) digits.