939005405 - N063 THE TELEPHONE AUDIO CANNOT BE HEARD

With the telephone activated, whilst the speaker at the other end manages to hear the speaker in the vehicle, their voice cannot be heard in the vehicle.This table does not consider faults due to service provider or phone function malfunction
The following telephones are enabled to operate with the Bluetooth® system and are supported by the system on the vehicle:- Audiovox®: SMT 5600 (Orange™ C500)*- Motorola®: V525*, V600*, Mpx220**- Nokia®: 6230, 6600†, 6820, 7610*- Sony Ericsson®: k700i, T610**, T637**, Z600*** The system is not currently able to support a GPRS connection (General Packet Radio Services) when it is connected to this mobile phone.** The system is not currently able to support a hands-free system when it is connected to this mobile phone.† The system is not currently able to support call waiting when it is connected to this mobile phone.
Test results
1RADIO VOLUME CHECKAll OKProblems encounteredOperation
Check that the volume of the PHONE channel in the radio is not set to 0.If it is, set it to a higher volume (e.g. 35) and check that the problem disappears.End of diagnosisThe volume is already set to a high enough levelMove on to Step 2
2ELECTRICAL CIRCUIT CHECKAll OKProblems encounteredOperation
Check the continuity and the insulation of the electrical circuit between the radio and the speakers    See E3510 RADIO Also check that the radio connectors are not faultyEnd of diagnosis1. Electrical connections faulty2. Front tweeters faulty3. Front speakers faulty4. Rear speakers faulty5. Faults in the radio connectors1. Restore the correct connections2. Replace the tweeters    Op. 5570T92 FRONT TWEETER (ONE), LEFT OR RIGHT - R.R 3. Replace the speakers    Op. 5570T90 FRONT SPEAKER (ONE), LEFT OR RIGHT - R.R 4. Replace the speakers    Op. 5570T96 REAR SIDE SPEAKER (ONE), LEFT OR RIGHT- R.R 5. Replace the radio    Op. 5570T80 CAR RADIO EQUIPMENT - R+R