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Yes they are registration,originating,termination & mobile station data

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Posted by HamidAliKhan

registration,originating,termination & mobile station data

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Posted by Hash007

Yes it contains following four basic things.

1. Registration: When the mobile does autonomous registration.
2. Origination: When the mobile station originates a call.
3. Terminations: When the mobile station responds with a page message.
4. Mobile Station Data: When it sends a Data Burst Message. E.g. SMS

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Posted by waqqas1

¦=> Allows only valid subscribers to access the network resources.
¦=> All MS challenged with same random number ("global" RAND send in the APM)
¦=> MS includes the authentication fields (AUTHR, RAND, COUNT) when it attempts to access the network (e.g., register, call). A success of the challenge is when the authentication fields sent by the MS match with those calculated at the BS.
¦=> VLR can authenticate MS if SSD is shared
¦=> Subsequent action is based on "policy" in effect (e.g., do unique challenges)

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Posted by jcelso

It basically contains 4 things:

1. Registration: When the mobile does autonomous registration.
2. Origination: When the mobile station originates a call.
3. Terminations: When the mobile station responds with a page message.
4. Mobile Station Data: When it sends a Data Burst Message. E.g. SMS

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Posted by sagitraz