Working Group ID (WGID)

In Inter-WACN Roaming-enabled Trunking Systems, once a roaming radio has registered on a foreign control channel (in other words, one outside of its Home System), the radio will attempt to affiliate its selected Talkgroup using its full TG WACN ID, TG System ID and Talkgroup ID. If the affiliation is successful, the system assigns the radio a unique abbreviated (16-bit) address known as the Working Group ID (WGID), which represents the radio's selected Talkgroup while affiliated. Communications on the selected (home) Talkgroup are relayed in both directions between the foreign system and the home system via an Inter-RF Subsystem Interface (ISSI) link. See also Working Unit ID (WUID).