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Network  

Network elements 

National Long Distance Service 

SDCA to LDCA 

Transmission media (This would include Optical 

fibre, radio systems etc.) 

Transmission equipment 

Other assets 

LDCA to LDCA 

Switching equipment (Tax level 1) 

Switching equipment   other 

Transmission media 

(This would include optical fibre, co axial cable, 

micro wave etc) 

Transmission equipment 

Other assets 

International Long Distance Service 

Transmission 

Transmission   domestic  

Transmission   International (This would include 

transmission equipment, satellite linkage, submarine 

cable etc.), region wise. 

Switching 

Circuit Switching 

Others (including Server, Router etc.) 

Cellular Mobile Telephone Service 

Core network  

Radio network  

(This should include elements from subscriber to MSC 

i.e. Base Switching Centre, Base Transceiver Station, 

Transmission Links   BSC   MSC, BTS   BSC)  

 Rest of network 

(This should include MSC, MSC  MSC links, MSO to 

NLDO links, MSO to BSO links and MSO to ILDO 

links) 

Dedicated network  

SMS server  

GPRS Networking 

Others  

VSAT 

Space segment  

Transponder