CallOriginator

Validations ASN.1 Parent Types

The call originator applies only in respect of mobile terminated traffic.  It identifies the person making the call.

Also, some networks may inhibit the transfer of this information where CLI presentation is prohibited.

Derivation:

GSM item CallingNumber (GSM 12.05).  This item is of type AddressString.

Conditionality:

Must be present within group MT Basic Call Information where the network supports calling line identity (CLI) or if TeleService Code indicates SMS usage (values 20 or 21).

Validations

Error Code	Context	Severity Level	Validation Description
35	MTC	Severe	Item Calling Number missing when TeleService Code indicates SMS usage (values 20 or 21)   Note:  Error Codes 30, 31, 32, 33 and 34 removed in TAP release 3.10 (01 May 2003).

 

CallOriginator ::= [APPLICATION 41]  SEQUENCE
{
    callingNumber               AddressStringDigits   OPTIONAL,
    clirIndicator               ClirIndicator         OPTIONAL
}

Parent Types

MtBasicCallInformation
Text extracted from GSMA TD57 standard