UnstructuredSs-Request

Usage

This message is sent from a HLR to a mobile terminal to display some text information and possibly initiate a dialog. It may be triggered by an external event ot it may happen in the dialog created by a processUnstructuredSs received from the terminal.

Expected actions

• The mobile terminal displays the text and returns a result, possibly empty.

• The HLR must process the USSD response string according to its local convention.

Addressing

The TCAP dialog userInformation is used for identifying the subscriber. The destinationReference parameter will normally hold the IMSI as a land-mobile international number.

Invoke parameters

• ussd-DataCodingScheme – Coding used by USSD string

• ussd-String – Decoded USSD string

• alertingPattern – Special ringing mode

• msisdn – Sender phone number

Result parameters

• ussd-DataCodingScheme – Coding used by USSD string

• ussd-String – Decoded USSD string

Example

<component localCID=1" type="Invoke" operationCode="unstructuredSs-Request">
	<ussd-DataCodingScheme enc="hex">0f</ussd-DataCodingScheme>
	<ussd-String>1 - Account information
2 - Credit information
3 - Settings</ussd-String>
	<msisdn enc="e164">49173123456</msisdn>
</component>
...
<component localCID=1" type="ResultLast">
	<ussd-DataCodingScheme enc="hex">0f</ussd-DataCodingScheme>
	<ussd-String/>
</component>

References

• ETSI TS 100 974 V7.15.0 (2004-03) p1080