Difference between revisions of "UnstructuredSs-Request"

Latest revision as of 17:12, 27 August 2013

[edit] 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.

[edit] 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.

[edit] 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.

[edit] Invoke parameters

• ussd-DataCodingScheme – Coding used by USSD string

• ussd-String – Decoded USSD string

• alertingPattern – Special ringing mode

• msisdn – Sender phone number

[edit] Result parameters

• ussd-DataCodingScheme – Coding used by USSD string

• ussd-String – Decoded USSD string

[edit] 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>

[edit] References

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