UK households still have more than six weeks to take advantage of Plusnet's current broadband offer, which is running until March 31st.
The Yorkshire-based internet service provider is currently allowing consumers to upgrade their broadband and home packages for free.
A standard Plusnet broadband package offers 20Mb broadband and free evening and weekend calls, but the promotion enables subscribers to receive three months free Anytime calls.
This bolt-on – which allows households to make landline calls without charge throughout the week - normally costs £3.50 per month.
As a result, bill savings of more than £10 can be made over the course of the three-month introductory period.
Plusnet Talk Anytime also offers a 25 per cent discount to calls to top international destinations, while consumers can make as many 0870 and 0845 calls as they choose.
All subscribers are required to take out a Plusnet landline priced at £11.99 per month.