T-Mobile have recently announced that they will not allow contract customers to make calls to 07744 numbers as part of their inclusive allowance. The change will come in to force on June 1, 2007.

This means that customers will not be able to use services like DialToSave International Calls to make free calls abroad from their T-Mobile mobile phones.

If you make a lot of international calls, it may be worth considering getting a second mobile phone just for making international phone calls, as you can get 12 months free line rental on a 12 month contract anyway. We’d recommend O2 as the best option with the most countries that you can call using inclusive minutes, but Orange and Virgin Mobile are also viable options.

Blyk is a new free mobile operator to be launched soon in the UK using the Orange network.

Details are yet to be confirmed, but it’s to feature free mobile phone calls in return for users being fed advertisements via their phone.

So what’s in it for you? Well, for existing contract customers, it’s hard to imagine that this new service will bring any benefits. It’s already possible to get a free mobile phone with 12 months free line rental including up to 600 minutes of voice calls per month.

The target audience is the 16-24 age group where a lot of customers are on Prepay connections. If you’re paying per call, then clearly this could be a great benefit. Do teenagers have enough patience to watch the ads, in order to get the free calls? That remains to be seen.