Ins and Outs
DCH
Signalling
Camel
100
What do you call a customer from another country that is using your network?
In Roamer or In Bound Roamer
100
What does DCH stand for ?
Digital Clearing House / Data Clearing House
100
What is the id used by the roaming partner to identify which carrier the SIM is from?
IMSI (International Mobile Subcriber Identifier)
100
What does CAMEL stand for?
Customized Applications for Mobile network Enhanced Logic
200
What do you call a customer that is from your network that is currently making calls on a network in another country?
Out Roamer or Out Bound Roamer
200
What is the biggest DCH in the world?
Syniverse
200
How does a roaming partner verify that a customer is valid ?
Check the SIM Encryption against the HOME Network AUC.
200
What does CAMEL allow people to do?
Prepaid roaming, call forwarding, multi-party calls ....
300
Roaming is a ______ Agreement , Inteconnect is a ________ agreement
Credit , Routing
300
Name three DCH's
Syniverse, EDCH, Sybase, Mach
300
How does the roaming partner know what services that roaming customer is allowed to use?
Copied from the home HLR to the VLR of the visited network
300
Under a prepaid CAMEL agreement , how does the visited network get paid?
Generate TAP FILES just like postpaid
400
What do you call the file that holds all of the CDRs that an InRoamer has created.
TAP OUT
400
How does a DCH get paid
A percentage/ a fee for each CDR processed
400
How often is the VLR Refreshed ?
When the customer a) turns off phone b) moves c) network maintenance occurs
400
Under a prepaid CAMEL agreement how does the Home Network get paid?
The visited carrier - DECREMENTS THE HOME IN - this decrement creates Accounts Recieveables for the Home Carrier
500
What do you call the file that is sent to you by your partner and holds CDRs that your customer generated
TAP IN
500
What do you call the file that you send BACK to the DCH when you are protesting what the TAP file says?
RAP FILE (Reject)
500
What is the name given to the temporary phone number assigned to a roamer.
MSRN (Mobile Subscriber Roaming Number)
500
How does the home carrier assure prepaid CAMEL for out roamers
Check the TAP files from roaming partner against IN-CDRs (manually)
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