T29G + BT40 and Sennheiser MB Pro 1

[sbsllc]

Hello!
Identical to the description on this post (http://forum.yealink.com/forum/showthrea...=threaded) our customer's Yealink T29G with a BT40 and firmware Version 46.80.0.70 & Hardware Version 46.0.0.128.0.0.0 is not connecting to Sennheiser MB Pro 1.

I tried to with the original 46.80.0.60 firmware, then upgraded to .70 with the same results. It sees the headset each time, asks for a pin each time, I enter 0000, press OK (or the 4th soft button, "connect") and it simply sits at the device list screen with the headset repeating the audible "pairing..." announcement every 2-3 seconds. I've tried no password (the phone says I can't do that) and 1234, 0, maybe a couple others.

I've also successfully paired my Motorola Whisper to the Yealink T29G phone (but they can't use my headset), and I've paired the Sennheiser headset to my Moto X Gen 2 cell phone. I know that both devices function properly, but just not together.

Please advise, even if it's to use a beta firmware.

Thank you!