3G Data Service Testing

Application service data unit

ATM data service unit

automatic data service center

B-ISDN Broadband – Integrated Service Data Network

Broad band Integrated Service Data Network (B-ISDN)

Broadband Data Service

chemical data service

connectionless broadband data service

data net

data net console message

data net control module

DATA SERVICE

data service command processor

data service connecting

Data Service Control

data service decoder

data service for highway-crossing warning

data service language