https://www.reuters.com/article/us-britain-huawei-vodafone/vodafone-and-bt-need-five-years-minimum-to-remove-huawei-idUSKBN24A1CG

Vodafone and BT said they would need a minimum of five years to remove equipment made by Huawei [HWT.UL] from their British networks, with Vodafone putting the cost of doing so in the "single figure billions" of pounds range.