🎧 3.5mm Smartphone Headset to RJ9 Adapter: Compatible with Yealink and Grandstream IP Phones - T20, T21, T41G, GXP14XX, GXP2124, GXP2120, GXP2140, GXP2160, GXP2110 Review

Sound quality was good but there was no microphone out on the other end, no one could hear me. I have a Yealink T48S that is on the product compatibility list, so I guess I'm wrong? I'm sure it works great for the right models, but the Yealink T48S isn't one of them.

The RJ9 adapter fitted the side of my desk phone perfectly and the 3.5mm jack picked up the adapter well from my headset. When I received the item, both earbuds were working but the microphone was not working. I expected this to be possible as the headphones are wired differently. I cut the wires, swapped and soldered two of them and now everything works fine. It's great to have a dual ear headset with boom mic along with my desk phone.

Connection to Yealink T31G headset port crashes immediately when I have headset function enabled. This happens regardless of whether the headset is connected to the 3.5 mm jack or not. ALSO, it will not boot with that headset port (with or without a headset plugged into the 3.5mm port, and regardless of whether the headset feature was enabled or disabled prior to boot (whether by restarting the phone via the menu or initiated).Turn phone off and on again.) There must be some kind of short…

First I was so happy to find such a product so I can use the headphones with my phone at work (Yealink T46G phone) as headphones. Before purchasing this item, I saw other reviews mentioning that people on the other end of the phone would hear their own echo. And guess what, they're right. When I tried this out with a colleague I found that they could hear me very clearly and I could hear them clearly BUT they could hear their own echo and it was very loud and distracting. I tried again to make…