Wireless Communication Companies like Reliance, Airtel, Idea, Vodafone , BSNL etc all have different departments and the collective effort of all department result in providing a stable network to us. Here We had described those departments only- RF, Transmission, BSS, MSC, OMCR, VAS, Intelligent Network

2. Departments of Telecommunication

3. RF Survey (1/2)
 A process of identifying the cell site location.
 To get the basic knowledge of the site.

4. RF Survey (2/2)

5. RF Planning (1/2)
 This department deals with planning of Cell sites,
Frequency planning and Parameter Planning on
Different tools like MapInfo, ATOLL and Mcom.

6. RF Planning (2/2)

7. RF Drive Testing (1/3)
 An Engineer doing Drive Testing is named as Drive
Test Engineer as he need to test a particular cell for
overshooting by locking the frequency and once the
frequency is locked he needs to do drive test in
dedicated mode.

8. RF Drive Testing (2/3)

9. RF Drive Testing (3/3)

10. Operation and Maintenance Center
 It houses the centralized Network Management
System that monitors and manages each component of
the network to ensure that the network and the
services it offers are available at all the times.

11. Operation and Maintenance Center

12. Transmission

13. Installation & Commissioning

14. Installation & Commissioning

15. Base Station Subsystem
 Base Station Subsystem Department works with
OMCR. After they get to know about the alarms on the
site engineers go there and rectify it.
 Every zone has a BSS engineer.
 It is also responsible for BTS and BSC installation and
commissioning.

16. Network Switching Subsystem
 Network Switching Sub System consists of two things:
 MSC
 OMC-R

17. Mobile Switching Center
 Mobile switching center is the central heart of a
telecom network. It controls all the switching
functions and Engineers in this departments are
responsible to handle the proper functioning of MSC
and its nodes

18. IN/VAS
 Value Added Service department is responsible for
planning and performance of value added services(for
those we have to pay extra money) like GPRS, CRBT
and SMS.
 Intelligent Network department deals with prepaid
services and Online charging system.