Recent report on Ofcom's announcment shows that the VoIP Out providers and ‘Two way VoIP’ services will have to provide access to 999 or 112 services.
Ofcom confirmed its decision to make all VoIP providers to implement this from 8th September, 2008.
As all you know, 999 or 112 emergency services have not been allowed to most VoIP users and was the reason behind why VoIP has not still become a complete replacement for traditional telephony.
To find the all the details on Ofcom's instruction>>