Public Safety Grade AT&T recently stated at a congressional hearing that there was no “real” definition for the term, “Public Safety Grade.” The public safety community responded with disbelief, led by the National Public Safety Telecommunications Council (NPSTC) which had published a paper addressing all of the issues needed to qualify as a Public Safety Grade Network. The document, “Defining Public Safety Grade Systems and Facilities,” was published in May of 2014 after much work by many people. Starting on page 108 of the document is a list of individuals and organizations that contributed to this report and the list is three pages long.
In all fairness to AT&T, at last week’s NPTSC meeting in Washington, DC, the AT&T senior vice president in charge of FirstNet stood up and apologized to NPSTC for his comments and then spoke about how AT&T is moving toward public safety grade status. His apology and comments were well received by NPSTC and the clarification was timely and well-articulated.
What he did not say and what I hope to show in this week’s Advocate is that there are differences between public safety grade for Land Mobile Radio (LMR) sites and an LTE network. It is important for LMR communications professionals to understand these differences and not hold AT&T to public safety grade for every cell site in the network. The methodology for hardening an LTE network is different but effective and it is these differences that need to be understood. Continue reading