DISCLAIMER: If this doesn't work, contact your Nortel Phone provider. We do not know too much more about these phones other than what is presented in this article.
Raising and lowering ringer volume in (some) Nortel phones
- Press the Nortel button (usually on the right of the phone, kinda looks like a circle, pictured below)
- Next, press *(star) 80 (one at a time)
- Now you can press up or down on the volume keys to raise and lower the ringer volume, respectively