Changes in telecommunications are impacting all types of user
group, which include business users, traveling users, small and
home OFFICES, and residential users. The acceptance rate of telecom-
munications and information services is accelerating significantly.
Voice services needed approximately 50 years to reach a very high
teledensity; television needed just 15 years to change the culture
and lives of many families; the Internet and its related services have
been penetrating and changing business practices and private com-
munications over the last 2 to 3 years.
標(biāo)簽：
Telecommunications
Handbook
The
上傳時(shí)間：
2020-06-01
上傳用戶(hù)：shancjb
