Changes

| products        = [[ISP]], IP television, telecommunications

| products        = [[ISP]], IP television, telecommunications

| employees      = 128,100 (2010)<ref>[http://www.btplc.com/Sharesandperformance/Annualreportandreview/pdf/BTGroupAnnualReport2010.pdf BT Group Annual Report 2010]</ref>

| employees      = 128,100 (2010)<ref>[http://www.btplc.com/Sharesandperformance/Annualreportandreview/pdf/BTGroupAnnualReport2010.pdf BT Group Annual Report 2010]</ref>

| revenue        = £20.91 billion(2010)

| revenue        = £20.91 billion (2010)

| website        = [http://www.btplc.com btplc.com]

| website        = [http://www.btplc.com btplc.com]

| blog            =  

| blog            =  

* BT Operate - responsible for the roll-out and maintenance of the IP based fixed-line network of BT, named 21C network

* BT Operate - responsible for the roll-out and maintenance of the IP based fixed-line network of BT, named 21C network

* BT Design - IT designers from their other divisions united together to design services on the 21C network

* BT Design - IT designers from their other divisions united together to design services on the 21C network

== History ==

== History ==