We have several Adtrans that are running older code T900G2A-R11-10-4-E.biz and some older than that. We wanted to perform upgrades on them to ensure security.
We have ACLs to our SIP provider and our own access for our IPs, but wanted to also upgrade them.
Is it possible to upgrade them directly or is there a need to upgrade them in a step-by-step method?
Were you able to get an answer to this question. I have the same situation that i need to upgrade older FW versions.
These can be upgraded directly. There is no intermediate upgrade steps required.
Not that end of software updates was supposed to be 12/2021 for Gen 2 products. This will be the last update to these products due to them being end of life.