Changing the Activity title in crm web ui

Hi All,

We have a requirement to change the Activity  title in web ui.

For example : In WEBUI Salespro->activities->search activities then open any activity like customer visit etc. the standard title is Customer visit: Description.

we would like to change the title like Customer viist: Transaction Id/description .

component : BT126H_CALL

Window : BT126H_CALL/MainWindow

Method: IF_BSP_WD_HISTORY_STATE_DESCR~GET_STATE_DESCRIPTION

Can any one guide me or provide sample code regarding the same .

Note: The title should be opportunity title in web ui

Your Inputs are highly appreciated.

Thanks & Regards,

Madan