Milwaukee Public Safety and Services (P25) Trunking Research
From The RadioReference Wiki
Unidentified Talkgroups on Milwaukee Public Safety and Services (25) System
1001 Unknown User/Usage
1008 Unknown User/Usage
1011 Unknown User/Usage
1162 Unknown User/Usage
1173 Unknown User/Usage
1915 Unknown User/Usage
2295 Unknown User/Usage
Inter RF Subsystem Interface (ISSI) Talkgroups
These show up as patches to other systems (Milwaukee 800Mhz OpenSky, Milwaukee County/Waukesha County OASIS, and Wisconsin WISCOM).
Unsure if these are permanent assignments or a pool of talkgroups that are randomly assigned by the system; additional monitoring is needed.
63052 ISSI Patch Talkgroup
63058 ISSI Patch Talkgroup
63062 ISSI Patch Talkgroup
63067 ISSI Patch Talkgroup
63075 ISSI Patch Talkgroup
63083 ISSI Patch Talkgroup
63086 ISSI Patch Talkgroup
63088 ISSI Patch Talkgroup
63090 ISSI Patch Talkgroup
63091 ISSI Patch Talkgroup
The above unidentified and ISSI Patch talkgroups show up using PRO96COM Control Channel decoding software.