asterisk users - Nov 2005 - Grandstream - No dialtone in handset after 1.0.6.7 firmware update..

Hi,

I'm just trying to setup a Grandstream BT-102 that I had lying around 
and haven't used for over a year..

I loaded up the 1.0.6.7 firmware and factory reset the config..

I have it working but there is no sound to the handset ear piece.. On 
speaker phone it works fine in an echo test.. When using the handset you 
can't hear anything.. The phone was working perfectly last time it was 
used and before upgrading the firmware I think it was working..

Anyone else have this issue?? or is there a setting that I need to look at??

Thanks