t46g sound quality problem vs t20

[asinshesq]

Thanks, but as I mentioned I am using the ehs36. In particular, I am using the ehs36 patch cord (the one that has an rj45 on one end and an rj9/11 on the other and an extra rj9/11 port in the middle) to connect the headset audio to the t46g headset or handset port. (When I moved from the headset port to the handset port, I started using an hl10 lifter rather than the ehs36 patch cable that goes into the 'ext' port on the t46g, but I think that just determines how the phone gets picked up to go off hook so should have nothing to do with the audio quality, right?).

I also know that this headset and the t46g (and ehs36) are compatible, and I further know that the combo works fine when I use the t46g handset port rather than the t46g headset port. I'm pretty sure this is a hardware problem (i.e. that there is something wrong with the headset port on this particular t46g). I am using .45 firmware and my understanding is that headset and handset ports should sound identical for any firmware after .37 so the fact that they are different is suspicious.