Hello
Mike, welcome to the
Kitz forum.
ChipSet Vendor Id: IFTN:0xb204
The
Infineon chipset definitely confirms an ECI equipped cabinet.
I'm not too sure if you mean that you experienced an approximate four hour outage of service or that there was a somewhat shorter outage, somewhere within the 0200 - 0600 hours time-frame?
Certainly the facts, as you have described, do seem to fit the application of G.INP on your circuit.
The questions have to be asked -- Which exchange? And which cabinet number, please?