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TS 02.78 (SA1)
CAMEL – Customized Applications for Mobile network Enhanced Logic –
Service description – Stage 1

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(P) GSM Rel-98 v7.2.0    2001/12    36 p.
(P) GSM Rel-97 v6.6.1    2002/01    36 p.
(P) GSM Rel-96 v5.6.0    1999/03    30 p.


Rapporteur:  TOEPFER, Armin
Descendant:  TS 22.078    
See also:  CAMEL-related TS/TR    


This TS specifies the stage 1 description for the first and the second phase of the CAMEL feature (Customised Applications for Mobile network Enhanced Logic) which provides the mechanisms to support services consistently independently of the serving network. The CAMEL features shall facilitate service control of operator specific services external from the serving PLMN. The CAMEL feature is a network feature and not a supplementary service. It is a tool to help the network operator to provide the subscribers with the operator specific services even when roaming outside the HPLMN. CAMEL is developed in phases. The following phases exist:
  • CAMEL phase 1. This is the default phase in this TS.
  • CAMEL phase 2.
The CAMEL feature is applicable
  • to mobile originated and mobile terminated call related activities;
  • and, as a CAMEL phase 2 function, to supplementary service invocations
The mechanism described addresses especially the need for information exchange among the VPLMN, HPLMN and the CAMEL Service Environment (CSE) for support of such operator specific services. Any user procedures for operator specific services are outside the scope of this TS. This TS describes the interactions between the functions of the VPLMN, HPLMN, IPLMN and the CSE.

The second phase of CAMEL enhance the capabilities of phase 1 and are included in this TS. Following new topics are added:
  • New event detection points were defined.
  • It is possible to interact with a user using announcements, voice prompting and information collection via in band interaction or USSD interaction.
  • It is possible to control the call duration and to transfer e-values from a serving node to the mobile station.
  • The CSE can be informed about the invocation of GSM supplementary services (ECT, CD, MPTY).
  • For easy post processing, charging information from a serving node can be integrated in normal call records.


 

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