There is an interesting article in the Bapco Journal by Neil Sherring of Windsor Telecom:

http://www.bapcojournal.com/news/fullstory.php/aid/1305/Is_it_time_to_make_the_switch_to__03__.html


About The Bapco Journal:


Quote:

About Us Launched over a decade ago The BAPCO Journal is the only publication in the UK written exclusively for and on behalf of all communications and information technology officers and decision makers within the public safety sector. As the official publication of the British Association of Public Safety Communication Officers The BAPCO Journal serves to disseminate information on all aspects of communications and information technology.