Hi Daphne, we just had the exact same problem. I phoned the helpline this morning - now 0800 1456789, and they told me to simply turn off/unplug the power at the main base unit. When we turned it back on - voila- all handsets now showing 'studio'. Apparently its just not sending the signal clearly to the handsets. Hope this works - its really irritating not having a phone isnt it? (You can also download the manual from various websites if you Google BT Studio 1100 - but it didn't actually address this particular problem!)
j
January 2010
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