Thanks for your post on our Community Forums and a very warm welcome to you Vgaine!
Sorry to hear you're struggling to call French mobiles and landlines from your home phone.
Can you tell me if you've been able to try an alternative handset? Do you have issues calling any other countries, or with UK registered phone numbers?
In regards to this previously being reported, do you have any reference to this for me to look into?
I'm not personally aware of this being a common issue, so any reference to that would be helpful to myself and indeed the thread
Kindest regards,
David_Bn