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ETC - Establish Temporary Connection

It is common to physically locate gsmSRF within a stand alone IP (Intelligent Peripheral). This however requires the service control in the gsmSCF to establish a connection between the MSC and the IP. This is achieved using the ETC message between the gsmSCF and gsmSSF which in turn initiates a traffic channel to be set up between the MSC and the IP.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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