In a six-month trial, officers at the Fife fire and rescue service are sending images of casualties to local hospitals to help accident and emergency units prepare for treatment.
Consultants use the images to assess injuries, mobilise medical teams and decide whether to travel to the scene.
IDC analyst Paolo Pescatore said, "The potential for multimedia messaging services in the enterprise and public sectors is enormous."
The network would have to be reliable and transmit MMS quickly. The cost will be 40p for every MMS - typically five for each patient - but Pescatore said this cost has to be balanced against the potential for saving lives and improving healthcare.
Alan Mann, divisional officer for the Fife fire and rescue service, said, "I am confident this will help save lives. Consultants will not base their complete diagnosis on this as it is just an aid, but a picture can tell 1,000 words."
Fife is considering using photo messaging in other hazardous situations and trialling digital cameras and video streaming.
Orange provided phones and training free of charge.