scope:

The present document identifies ETSI specifications and reports for TETRA V+D and DMO Release 2.2. It also includes ETSI specifications and reports relating to Critical Communications evolution undertaken by TC TCCE as well as relevant specifications produced by other ETSI technical committees. The present document is a revision of ETSI TR 100 392-17-6 V1.1.1 published in 2018 and contains the specifications and reports that have been produced since then.

ENs relating to TETRA specifications are often updated by first introducing an ETSI Technical Specification (TS) which will contain new features and change requests. Therefore, in these cases, the latest specification is shown along with the previous version, if one is an EN and the other a TS. In the same way, EN versions of the same specification will also be updated, replacing a TS in some cases. Release 2.2 specifications were functionally frozen after the 52^nd TC TCCE meeting in October 2018.

Release 2.2 specifications contain corrections and enhancements to Release 2.1 including a major development of the Inter System Interface specifications to develop separate specifications for IP and PSS1 over E.1 transport layers as well as transport layer independent parts.

NOTE 1: Functionally frozen means that no further functionality/features may be incorporated into the set of specifications, and that only corrective Change Requests (CRs) are to be accepted and agreed.

NOTE 2: It can be expected that corrective CRs will be introduced into the Release 2.2 specifications.

NOTE 3: Some of the CRs that will be produced will be for the next Release as they add new functionalities/features.