I believe these were indeed R7s as that was back in 2009. We now know that this was but one of the many known problems with the R7 which should never have seen the light of day no less have been offered for sale. I have NEVER sold an R7 as fortunately the R6 was still being produced at the same time. It was only with the later releases of the R8 a year or two later that the ACS 509 became useable. Useable, not perfect.
The R7 fiasco came after Avaya took the reins from Lucent and AT&T who produced solid products for decades. It was to be the bellwether for the direction Avaya would be taking in engineering and quality control for future products.
-Hal
