Oxford-based Ridgeway Telecom has donated a Samsung OfficeServ 7100 system to the charity Against Breast Cancer.
The system was supplied and installed free of charge over a two day project which also involved upgrading analogue lines to ISDN 2 with direct dial numbers.
Ridgeway Telecom has been working with the Abingdon-based charity since 2010, providing its fixed lines and broadband services.
Ridgeway's Technical Solutions Manager, Farah Nazir-Chapman, said: "Everyone knows what a fabulous job Against Breast Cancer do through fundraising events, research and raising awareness. We wanted to help and show our support to a loyal and valued customer."
Rob Fleming, Development Manager for Against Breast Cancer, added: "The new digital phone system has enabled our supporters to engage with us more easily than ever before and everyone can use the system in complete confidence."