callTypeLevel2

Validations ASN.1 Parent Types

An item which identifies the sub category of Call Type Level 1.

This defines, in more detail, the classification of the call within the IOT, as used by the VPMN to price the call.

The categories are as defined within the IOT and it not, therefore, possible to use a category which has not been identified within the VPMN’s IOT.

Conditionality: 

Mandatory within group Call Type Group.

Values:
                                0              Unknown

                                1              Mobile

                                2              PSTN

                                3              Non Geographic

                                4              Premium Rate

 

Note:

Premium Rate is as defined by the VPMN’s national telecom regulator.

Non Geographic is used, for example, for special services and freephone/ toll free services.

Unknown is only used when it has not been possible to identify the called number as belonging to any other category (this will be a special case tariff defined in the VPMN’s IOT).

CallTypeGroup ::= [APPLICATION 258] SEQUENCE
{
    callTypeLevel1      CallTypeLevel1           OPTIONAL, -- *m.m.
    callTypeLevel2      CallTypeLevel2           OPTIONAL, -- *m.m.
    callTypeLevel3      CallTypeLevel3           OPTIONAL, -- *m.m.
    calledCountryCode   CalledCountryCode        OPTIONAL
}


Parent Types

CallTypeGroup
Text extracted from GSMA TD57 standard