Consultants Analysys Mason are conducting a study on behals of Ofcom into determining the location of Voice over IP callers making calls to emergency services. It is is easy to determine the location of a caller is in the old fixed line world because a phone number is recorded based on the location of a piece of copper “plugged” into the local telephone exchange.
This is not the case with VoIP. A VoIP number could be anywhere on the planet. Anywhere there is a connection to the IP network/internet that is. Ofcom recognises this and wants to understand whether there is a practical solution.
UK technical standards organisation NICC has published (Jan 2010) a potential solution to the problem though this is complex and also limited to VoIP users using UK ADSL connectivity.
This solution stems really from network architectures familiar to large telcos and my first reaction is that it is very expensive. One might ask what price a life? This is a reasonable question. We all have grannies and nobody wants ours to