TalkTalk's new All-in SIM will revolutionise mobile services, according to Tristia Harrison, the firm's Managing Director for Consumer.
She said that, for consumers who are after the best price for calls, texts and mobile broadband, this represents an "unbeatable deal".
The All-in SIM offers unlimited minutes, texts and data for £12 per month, with customers able to sign up on rolling 30-day plans.
"We’ve successfully driven down the average cost of broadband and TV packages in Britain, giving millions of families more for their money. Now we’re doing the same for mobile," Ms Harrison stated.
She said savvy shoppers are realising that a separate mobile package costs "significantly more" than taking it together with their broadband and TV.
"And our great value All-in mobile SIM isn’t just for people streaming and downloading day-in, day-out. For those simply after the best price, this is an unbeatable deal," Ms Harrison added.
According to TalkTalk, the All-in SIM allows consumers to save £270 compared to Three’s equivalent unlimited package over 18 months.