The deal was announced last month, when BT decided to pull out of the Irish fixed line market and transfer its 84,000 residential and 3,000 small business phone and broadband customers to Vodafone.
Once completed Vodafone will have a total fixed line customer base in Ireland of over 170,000.
This will make it the second biggest provider in the country after Eircom.
Following this deal Vodafone will also have around fifteen per cent of the country’s fixed line broadband user base.
As part of the deal, BT will continue to upgrade fifty eight telephone exchanges to enable more parts of the country to receive high speed internet services.