Take a look att this link. Motorola Solutions is trying to push people to digital, when we all know that when it comes to narrowbanding---just about any analog two way manufactured after 1998 can be programmed for the "narrow" emission, you do not have to buy more radios or a new supporting system!
Motorola Solutions Communities: Fresh Ideas in Two-Way Communications: Digital Two-way Radios Make Narrowbanding Compliance Easy for PROMPT Ambulance Service
Motorola Solutions Communities: Fresh Ideas in Two-Way Communications: Digital Two-way Radios Make Narrowbanding Compliance Easy for PROMPT Ambulance Service