Question about Yealink T48g

Hello David, I have been using the Bluethooth dongle for the T48G successfully for a long time. With it, you can use any Bluetooth-enabled speakers and/or headphones. I have already used it with various headphones from Jabra and Plantronics as well as with the external Jabra Speak 510. So you should have no problems using your Sony as well.

Hello David23. Bluetooth is not implemented per se in the T48G. There is a Bluetooth dongle for this device as an accessory (not included in the scope of delivery). I don't have it myself, so I can't answer your question completely.