Difference between revisions of "ProcessUnstructuredSs"

Latest revision as of 17:12, 27 August 2013

[edit] Capability: Services

[edit] Usage

This message is sent to a HLR when a mobile terminal makes a single USSD request – normally by "dialing" a number like *NNNN# or *NNN*NNNNNN#. Common usage is for activating and deactivating various non-standard services, entering prepaid card codes or performing custom operations.

[edit] Expected actions

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

• The HLR may initiate a sequence of unstructuredSs-Request to the mobile station in the same dialog to implement menu navigation.

• The HLR may return a text answer that will be displayed but not saved on the mobile terminal.

[edit] Addressing

The TCAP dialog userInformation is used for identifying the subscriber. The originationReference 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 remoteCID=1" type="Invoke" operationCode="processUnstructuredSs">
	<ussd-DataCodingScheme enc="hex">0f</ussd-DataCodingScheme>
 	<ussd-String>*100*123456789012#</ussd-String>
	<msisdn enc="e164">49173123456</msisdn>
</component>
...
<component remoteCID=1" type="ResultLast" operationCode="processUnstructuredSs">
	<ussd-DataCodingScheme enc="hex">0f</ussd-DataCodingScheme>
	<ussd-String>Added 10 E to your account, new credit 11.84 E</ussd-String>
</component>

[edit] References

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