ToS - Type of Service

The IP (Internet Protocol) uses the ToS (Type of Service) field to provide an indication of the quality of service desired. These parameters are to be used to guide the selection of the actual service parameters when transmitting an IP datagram through a particular network. The type of service filed in some cases has been renamed the DSCP (DiffServ Code Point).


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

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