tomtom 520 no sound when connected to phone

[Razer]

I got a tomtom 520 for xmas and setup my phone and tested it at home, i rejected a call the other day and the missus then tried to phone (using the phone directly - Nokia 3109c) but now the sound doesnt transfer to tomtom even though it stays connected.

She reckons she did something on the phone but i cant see what and she cant remember

When making a call tomtom and the phone say they are making a call but i cant hear anything from either the phone or tomtom

ive deleted the pairing on both devices and re-connected but to no avail.

Any ideas?!?

EDIT:

Weird its just started working, very confused.

[if1977]

If you are making a call from your phone but are connected to the TomTom you will not hear a dial tone, just someone answering at the other end when they answer. If you make the call through the TomTom (using the keypad on the TomTom) you will hear the dial tone and then the other person answering also. Is this whats happening or am i off the mark.
_________________
NEW Tomtom GO 500 (hope it is good)
iphone (running all day, doesn't like it)
XL LIVE IQ Routes (Got stolen and miss it)
GO 510 (in drawer now, time for upgrade)

[Razer]

what was happening that when i made a call from either i wouldnt hear anything the other end at all.

Seems to be working again at the second though

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