@onyxnz: Welcome to the community!
If that ATA worked before, I very much doubt it.
My SPA122 is the “larger brother” of your model SPA112.
Please, c.f. the mini-HowTo and the additional background information given in Addendum and Notabene.
If this is set up properly, you should not need any port forwarding rules at all!
- Is this ATA your one and only SIP device in your network, or do others have to co-exist?
- Where is it located [Orange | Green | Blue ] ?
- How is it’s network configured?
We need a bit more details to help you …
EDIT: Forgot to mention:
Upgraded in the way described, 155 works flawlessly like a charm for me!
Many thanks @ms and the whole crew behind IPFire !