Trunking is a Radio Communication technique that makes communication not only a lot easier but also more efficient and cost effective.

Unlike the traditional radio communication systems, whereby the different users have been operating on separate radio frequencies or radio channels, often users exceeding the number of channels provided, radio trunking smartly controls and guides the users toward a free channel.

Trunking permits a large number of users to share a relatively small number of communication paths or trunks. Channel assignment is automatic and completely transparent to the individual users. Finding a free channel is therefore not the user obligation as the system does it automatically.

Trunking is therefore defined as the automatic and dynamic allocation of a small number of radio channels among a large number of radio users.