Starting today, public safety answering points can request that the four largest U.S. wireless carriers make the necessary network changes to allow text-to-911 services within their areas, pursuant to the text-to-911 agreement reached among public safety interests and the carriers.  During a conference call today, Brian Fontes, chief executive officer of the National Emergency Number Association, explained that after PSAPs make such a request, carriers will have up to 180 days to work with that requesting PSAP to provision texting to 911 in a format the PSAP has requested.  Mr. Fontes noted that some carriers have already implemented changes in their networks to enable text-to-911 before today’s deadline, and some PSAPs already support text-to-911 service. Source: TRDaily, May 15, 2014