My dad has a Motorola T605 cell phone with Verizon. Most of the time, if he received a call when the phone was on the holder and connected to Bluetooth, it wouldn’t work. Dialing out was no problem. The phone would remain on, but no audio could be heard. If he attempted to re-dial, you couldn’t hear any audio either. So, while voice activation might be working, you couldn’t hear the robot chick on the phone prompting you. Basically, when receiving an incoming call while connected to the hands free Bluetooth, the phone would mute once you answered.
We fixed this by plugging in the car charger into the cell phone. That seemed to fix it.
Some additional details for Google searchers: He recently had Circuit City come on-site install the Bluetooth Hands Free set. He’s got an older Toyota Tacoma, so it doesn’t integrate with his stereo. It merely has the stand, the included speaker the size of a brick, and whatever connections for power. I read on a forum that the yellow wire was mis-documented to be the mute wire, and the orange the correct one. However, since this was wired in the back of his dashboard, and I’m not a mechanic, I figured maybe the phone couldn’t do certain functions when not plugged in. A lot of computers run at half power when on battery. Apparently the phone is the same way.
2 Replies to “Motorola T605 Bluetooth Hands Free Mute Problem”
Damn… just got an email from him saying it didn’t work. More research to be done…
Jester – did you resolve the behaviour with the T605 carkit? For the Toyota Tacoma, if it is a non-JBL sound-system, one of the integration harnesses is made by Peripheral Electronics – Harness PPH1761 and an MSS relay. These would have plugged straight into the vehicle radio connections and then on to the T605 power harness. The system would switch out the radio and put handsfree audio to the front speakers of the Tacoma. Send me an email and I can help more…
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