You can read the FAQ on the Motorola Alert Monitor Receiver by checking http://www.scannercentre.8m.com/plecalrt.html. If that link should die, you can read the local copy.
If you have one of the 2+2 or chord decoders, you can make it decode Quick Call II. To do this, use 2 reeds of the same frequency in place of the 2 different reeds for each chord. This tricks the decoder and it thinks it is hearing the chord, when there is really only one tone coming in at a time.