Quote:
Originally Posted by ScottD3
What function does that give you via the MMI?
When you say talk and listen via the hifi, it uses the speakers from the stereo and the microphone in the roof?
Same as the others then?
|
I presume the original ECU was designed before general availability of BT cell phones. [It must have been designed and engineered by Audi and Motorola [who made the ECU] long before the ECUs went into cars in late 2002].
It uses the info database in the car and makes the car hifi and mic. in the mirror 'the phone'. It tracks incoming and outgoing calls so it's just like a self contained phone. The optional handset [which was £100 on top of the £480 that the ECU cost] doesn't participate in any way in normal use. You hear the ring on the sound system and if you choose to answer by 'button pushing' the MMI, it pauses the CD or AMI and enables the mic.
The ECU generates a BT signal but only to connect to the optional handset which sits in a cradle only designed to charge it [there are no other connections]. I presume this was for passengers rather than the driver, but although optional, every car that had the ECU seems to have had the handset too.
The MMI can read incoming texts but can't generate or send one. You CAN enter and send texts on the handset if you have one linked.
To summarise the differences:
a) In the Motorola ECU, the ECU handles the call [and may BT it to the handset]
b) In the Handyvorb2 and BTA, the attached phone handles the call [and BTs it to the ECU]
Julian