Charging

What is the main traffic?

• SMS, data, calls

• SMS, data, international

• SMS,data, roaming

• roaming, data, calls

Charging and billing are online system.

• yes

• no

the main node that have all operator customer numbers is

• SDP

• VLR

• HLR

• CCN

The call flow is ?

• handset , BTS , MSC, core , Billing

• handset , MSC , BTS, core , charging

• handset ,core, MSC , BTS , charging

• handset , BTS , MSC, core , charging

HLR means

• handset location register

• home location register

• hard location register

• heavy location register

VLR means

• var location register

• variable location register

• visitor location register

• visit location register

SDP means

• service data point

• server data point

• service door point

• service data people