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ISP TalkTalk has hopped on the mobile bandwagon pitching a pay monthly package for just a fiver.

The catch: you have to be an existing customer - it's metaphorically flipping the finger at everyone else: "You must be an existing TalkTalk customer to be eligible for mobile services" - and you have to be happy to take Samsung's Galaxy Y handset. Other phones are available, but at greater cost. It listed other phones for £10 and £25 a month. None appear to have an up-front cost too.

If you only want to pay £5 a month, you'll also have to make do with TalkTalk's Small tariff, which gives you 100 minutes, 250 texts and 200MB of data each month for the duration of the two-year contract.

The Medium tariff ups those totals to 300 minutes, 3000 texts and 500MB of data. Or pay more still and get the Large package, which provides 1000 minutes, 3000 texts and 4GB of data each month. Note that you'll only get half as much data with any package if you don't sign up online. Medium will typically set you back an extra £5 a month; large £15 extra each month, but the exact addition depends on which phone you take.

Sim-only deals run cost £5, £10 or £15 a month, yielding 50, 200 or 400 minutes; 50 or 3000 texts; and 0, 100MB or 500MB of data, depending on which of the three options you take.

The ISP is operating on Vodafone's network. ®

Regcast training : Hyper-V 3.0, VM high availability and disaster recovery