Currently, I am using an ISDN Gateway 3220 running version 2.1(1.43)N that is out of warranty. However, I am experiencing an issue and would like to try an upgrade of firmware to the highest version for 3200 series which is version 2.2(1.79)N.
The firmware is no longer supported and cannot be downloaded. I also understand the risk for upgrading, but does anybody have this firmware that they can provide me with?
Have you looked in the downloads section? I know it doesn't list 2.1(1.79), but you might be able to get close. Just be sure to look at the description of each software version, looks like there are several that are for other ISDN Gateway models other than the one you're looking for.
Thank you for your kind comments. Unfortunately, I could not find the software for older ISDN Gateway models. I even searched through all of the 'End-of-Sale' products but could not find it there either.