Override Mobile Operator to Enjoy Cheap Calls Abroad from Mobile

Do you know how to override your mobile operator to make cheap calls abroad from your mobile?
Depending on your mobile network and calling plan, certain access numbers can be truly suitable for you to make cheap or even free international phone calls from your mobile: We advise you to get in touch with your mobile operator in advance to double-check this information. We cannot guarantee that this information is up to date since rates and calling plans of mobile operators vary significantly overtime. Be aware that other access numbers are usually heavily surcharged when calling from a mobile.
Mobile users, contact your mobile operator to check in advance the rates to our access numbers when calling from your mobile. Below are the contact numbers of the major mobile operators in the UK:
O208705 214 000
BT0800 800 150
NTL0800 052 2000
One.Tel0800 957 0700
Orange07973 100 150
Telewest0845 142 00 00
T-Mobile0845 412 5000
Virgin Mobile0845 6000 789
Vodafone07836 191 191