AS - Application Server

A logical node of the 3GPP IMS which performs specific functions related to the delivery of a particular IMS based service. Examples include the Telephony Application Server used in VoLTE networks to support Supplementary Services, as well as the IM (Instant Messaging) Application Server which is used to supported next generation messaging services.


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

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