26.1793GPPCodecs and media handlingMission Critical Push to Talk (MCPTT)Release 17TS
Requirements for codecs and media handling in support of the Mission Critical Push To Talk (MCPTT) service are contained in this document.
The MCPTT service supports voice communication between several users (i.e. group call), where each user has the ability to gain access to the permission to talk in an arbitrated manner. The MCPTT service also supports private calls between two users.
Background information in support of this document may be found in TR 26.989 .