Help Help, problem with outgoing calls on car interface, LG Optimus G

[princeb]

New here. I have a LG Optimus G on ATT running jelly bean. I have the phone paired successfully via bluetooth to 2 different car's bluetooth handsfree voice activated phone system.

I am able to receive incoming phone calls (calls sounds play on car speakers). When I make a call dialed from the phone interface, it connects and the sound plays in the car speakers correctly.

However, when I try to make a phone call from the car interface (voice or otherwise), it attempts to dial, but never actually connects through. It does not have an error message, it just stops automatically like a dropped call.

I can't seem to find anything online about this issue. Solutions? TIA

 

[Little Darwin]

I have not actually paired my Optimus G to my car yet, but if I get a chance I will see whether mine works. I have the Sprint model, so it may be different, but it could at least provide another data point in case nobody else chimes in.