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Content for  TS 22.078  Word version:  16.0.0

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19  Interactions with Operator Determined Barring (ODB)Word‑p. 70

19.1  Barring of all outgoing callsWord‑p. 70

Same principle as for subclause 18.8.1.

19.2  Barring of all outgoing international callsWord‑p. 70

Same principle as for subclause 18.8.2.

19.3  Barring of all outgoing international calls except those directed to the home PLMN countryWord‑p. 70

Same principle as for subclause 18.8.3.

19.4  Barring of outgoing calls when roaming outside the home PLMN countryWord‑p. 70

If the subscriber is outside her home PLMN country the Barring of outgoing calls when roaming outside the home PLMN country service will be invoked. Thus, originating CAMEL based services will not be invoked.

19.5  Barring of outgoing inter-zonal callsWord‑p. 70

Same principle as for subclause 18.8.2.

19.6  Barring of outgoing inter-zonal calls except those directed to the home PLMN countryWord‑p. 70

Same principle as for subclause 18.8.2.

19.7  Barring of outgoing international calls except those directed to the home PLMN country AND barring of outgoing inter-zonal callsWord‑p. 70

Same principle as for subclause 18.8.2.

19.8  Barring of outgoing premium rate callsWord‑p. 70

Same principle as for subclause 19.2. The serving network analyses the destination number to determine whether the destination corresponds to a premium rate number. The handling will be the same both for Premium rate information and Premium rate entertainment.

19.9  Barring of incoming callsWord‑p. 71

Same principle as for subclause 18.8.4.

19.10  Barring of incoming calls when roaming outside the home PLMN countryWord‑p. 71

Same principle as for subclause 18.8.5.

19.11  Barring of incoming calls when roaming outside the zone of the home PLMN countryWord‑p. 71

Same principle as for subclause 18.8.5.

19.12  Operator Specific BarringWord‑p. 71

No interaction. Any originating or terminating CAMEL based services shall be invoked before Operator Specific Barring of type 1,2,3,4. Operator Specific Barring is applicable only when the subscriber is registered in the HPLMN.

19.13  Barring of Supplementary Services ManagementWord‑p. 71

No interaction.

19.14  Barring of registration of forwarded-to numbersWord‑p. 71

No interaction. The HPLMN will apply the barring of registration of the forwarded-to number as specified in TS 22.041 and TS 23.015.
If the served subscriber is provided with TIF-CSI the HPLMN shall not check the forwarded-to number; hence only the category Barring of registration of any call forwarded-to number will take effect.

19.15  Barring of invocation of call transferWord‑p. 71

No interaction. The serving network will apply the barring of invocation of call transfer as specified in TS 22.041 and TS 23.015 after any CAMEL handling of the call legs to be joined by the ECT invocation.
If the CSE instructs the serving network to bar the invocation of call transfer involving a specific call leg, this instruction shall have priority over the possible Operator Determined Barring of invocation of call transfer.
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19.16  Barring of Packet Oriented Services |R5|Word‑p. 71

No interaction. Any originating CAMEL based services shall be invoked before the barring of packet oriented services.

20  Interactions with Optimal Routeing (OR)Word‑p. 71

If OR is applied to a late Call Forward then the interrogating PLMN shall invoke a mobile originated CAMEL based service, if required for the served subscriber.
If a call is subject to basic OR, VPLMN-A shall pass the address defining the ultimate destination of the call (whether VPLMN-B, HPLMN-B or the forwarded-to destination) to the CSE of the originating subscriber.
If a call is subject to OR of late call forwarding from an IPLMN which is also the forwarding subscriber's HPLMN, then the IPLMN shall pass the forwarded-to number to the CSE which handles mobile terminating CAMEL-based services for the forwarding subscriber.
Specific interaction is described in TS 22.079.
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21  Interactions with SCUDIF call |R4|Word‑p. 72

Refer to TS 23.172 for a definition of "preferred service", "less preferred", "service selected " and "fallback".

21.1  Call Party Handling |R6|Word‑p. 72

The CSE may invoke CPH procedures only if one of the following conditions is fulfilled:
  • during call establishment, the preferred service is speech. After the VPLMN/IPLMN has completed the CPH procedure, the VPLMN/IPLMN shall force a fallback to speech; or
  • during the active phase of the call, the selected service is speech. After the VPLMN/IPLMN has completed the CPH procedure, the VPLMN/IPLMN shall force a fallback to speech.

21.2  User Interaction |R6|Word‑p. 72

The CSE may initiate user interaction or order in-band tone only if one of the following conditions is fulfilled:
  • during call establishment, the preferred service is speech; or
  • during the active phase of the call, the selected service is speech.

21.3  User-requested service change |R6|Word‑p. 72

The VPLMN/IPLMN shall disallow a user request for service change during user interaction.
If the user request for service change occurs during the playing of a CAMEL warning tone, then the playing of the CAMEL warning tone shall be stopped.

21.4  CAMEL warning tones |R6|Word‑p. 72

21.4.1  Warning tone related to call duration controlWord‑p. 72

For a SCUDIF call the CAMEL warning tone may be ordered by the CSE. At the time of tone connection, the VPLMN/IPLMN shall not connect the tone if the selected service is multi media.

21.4.2  Warning tone related to tone injectionWord‑p. 72

The CSE shall be able to inject a warning tone if the selected service is speech, but not if the selected service is multi media.

21.5  Mid-call procedure |R6|Word‑p. 72

The CSE shall be able to arm the mid-call event when the selected/preferred service is either speech or multi media.

21.6  Follow-on call |R6|Word‑p. 73

If the CSE creates a follow-on call before the call has reached the active phase, then the VPLMN/IPLMN shall establish the follow-on call with the preferred service and the less preferred service that were available during call establishment.
If the CSE creates a follow-on call after the call has reached the active phase, then the VPLMN/IPLMN shall establish the follow-on call with the selected service and the not-active service that were available during the active phase of the call.

21.7  Service initiation at unsuccessful call establishment |R6|Word‑p. 73

If an initial service event occurs due to unsuccessful call establishment, then the VPLMN/IPLMN shall report to the CSE, the preferred service and the less preferred service that were available during call establishment.

22  Location InformationWord‑p. 73

The purpose of this procedure is to obtain the location of a particular subscriber. The resolution of the location information may be based on the Cell Identity or Service Area Identity of the subscriber's location, or may be based on more accurate positioning information.
During Mobile Terminating call handling, the HLR may obtain the subscriber's location from the VPLMN.
The CSE may interrogate the HLR in order to obtain a particular subscriber's location based on the cell identity, service area identity or the routing area identity. The HLR may return location information as a result of paging the subscriber.
The HLR may return location information as defined in TS 23.018.
The CSE may interrogate the GMLC in order to obtain a particular subscriber's current location based on accurate geographical information as defined by LCS in TS 22.071. The GMLC has the possibility to reject any interrogation from any CSE.
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23  Cross Phase compatibility with future Phases of CAMELWord‑p. 73

Where different entities support different phases of CAMEL they shall operate at the highest common phase. CAMEL phase 1 is the lowest common phase.

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