Hi. I am new to Voip. I have a gigaset c530AIP phone and an account with 2talk. When I dial a number, I get the message "Setting up call" but for some reason it wont connect. I have tried with different  calls both fixed line and mobiles so it is not the recipient phone the problem. can anyone help me.  2 talk are not very prompt with their technical helpline.
I can talk Gigaset to gigaset so my internet connection is not a problem