Teletraffic Models of Random Input. Teletraffic Models of Random Input -- The Erlang Multirate Loss Model -- Multirate Retry Threshold Loss Models -- Multirate Elastic Adaptive Loss Models -- Multirate Elastic Adaptive Retry Loss Models -- On-Off Multirate Loss Models -- Teletraffic Models of Quasi-Random Input. Teletraffic Models of Quasi-Random Input -- The Engset Multirate Loss Model -- Finite Multirate Retry Threshold Loss Models -- Finite Multirate Elastic Adaptive Loss Models -- Finite ON-OFF Multirate Loss Models -- Teletraffic Models of Batched Poisson Input. Teletraffic Models of Batched Poisson Input -- The Erlang Multirate Loss Model With Batched Poisson Arrivals -- Batched Poisson Multirate Elastic Adaptive Loss Models -- Interdependency of the Teletraffic Models.