Gateway control protocol: Dialling method information packages
|Publication Date:||1 March 2009|
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.