provideRoamingNumber

Usage

This message is sent by the HLR to the current VLR for each mobile terminated call to get a temporary roaming number to which the call is sent over ISUP.

Notes

This message would normally be sent from the GMSC to the HLR using the MAP-C protocol using the sendRoutingInformation operation. Since MAP-C is not required the routing entity will use XML to invoke provideRoamingNumber and wait for the answer.

Expected actions

• The routing entity needs to get a roaming number for each mobile terminated call

• The returned number(s) must be used to route the call to the terminating network

Invoke parameters

• imsi – IMSI of the SIM card

• msc-Number – MSC identification string / number

• msisdn – Number associated with the SIM

• lmsi – Local mobile station identity (VLR specific)

• gsm-BearerCapability – Desired bearer capabilities
  • protocolId – Desired protocol, one of "gsm-0408", " gsm-0806", "gsm-BSSMAP" or "ets-300102-1"
  • signalInfo – Signal information PDUs, already encoded

• networkSignalInfo – Desired network signaling capabilities
  • protocolId – Desired protocol, one of "gsm-0408", " gsm-0806", "gsm-BSSMAP" or "ets-300102-1"
  • signalInfo – Signal information PDUs, already encoded

• suppressionOfAnnouncement – If present indicates that call failure tones or messages should not be generated (MAP v3)

• gmsc-Address – Address(es) of the GMSC handling the call (MAP v3)

• supportedCamelPhasesInGMSC – Supported CAMEL phases, can be "phase1" and/or "phase2" (MAP v3)

Result parameters

• roamingNumber – Number to which the call should be routed

• extensionContainer – Container for various extensions (MAP v3)

Example

<component localCID="1" type="Invoke" operationCode="provideRoamingNumber">
	<imsi>497012345678900</imsi>
	<msc-Number enc="e212">49700500000</msc-Number>
	<msisdn enc="e164">49173123456</msisdn>
	<lmsi>94 73 43</lmsi>
	<gsm-BearerCapability>
		<protocolId>gsm-0408</protocolId>
		<signalInfo>20 36 35</signalInfo>
	</gsm-BearerCapability>
	<suppressionOfAnnouncement/>
	<gmsc-Address enc="e212">49700500001</gmsc-Address>
</component>
...
<component localCID="1" type="Result>
	<roamingNumber enc="e164">49345678901<roamingNumber>
	<roamingNumber enc="e164">49345000221<roamingNumber>
</component>

References

• ETSI TS 100 974 V7.15.0 (2004-03) p1067