thx admon for your fast response! I tried last week in France. I was travelling and on my iphone I had to switch from vodafone (my provider in Germany) to Orange in France. So I allowed roaming on the iphone and switched off the automatic provider selection and selected Orange instead. Switching the provider in France in the X3000 with a vodafone card was not easy at all. I couldn't make it happen.
Can you give me some instructions? I can connect with SSH and I can use manual AT commands. Maybe there is a way to save AT commands in future so that these can be reused easily to switch provider