I have already contacted a mod but as it was such a technical problem was unable to assist other thatto get me straight through to the "Support Section", they were unable to suggest a remedy other that unistall, wait, and then try again.
After several long and painful conversations with the "Support Team" of SmartTalk, I have finally been in contact with the developer of the SmartTalk App.
We have done a few tests on the system and we are very near a solution, I hope.
It has been stated that there are others having a similar problem but have failed to bring it to BT's attention.
I will update this thread when a solution is received.