Some Rules for OPB

This should be the default on all servers.
TGID_ACL: DENY:0-89,92-199,800-899,9990-9999,900999

——————————————————————————-

Make Talk Groups from 1 to 89 Local Only.
Will not go out over the OpenBridge.

[OBP-NAME]
MODE: OPENBRIDGE
ENABLED: True
IP:
PORT: xxxxx
NETWORK_ID: 
PASSPHRASE: 
TARGET_IP: xxxxxxxxxxxxxxxxxxxxx
TARGET_PORT: xxxxx
USE_ACL: True
SUB_ACL: DENY:1
TGID_ACL: DENY:1,2,3,4,5,6,7,8,10,  #etc etc 
RELAX_CHECKS: False

DENY:89,etc,etc,etc

or

I would also recommend, for sanity, all of your external bridges contain this in GLOBAL:

SUB_ACL: DENY:0-1000000
TGID_TS1_ACL: DENY:0-89
or
TGID_TS2_ACL: DENY:0-8,10-89

if you need full OBP full Talk Groups :
TGID_ACL: PERMIT:ALL

Running more than one OPB
To show System OpenBridge and Active Incoming Calls on One line.

On the OPB config :
[OBP-XYZ<->ABC]
MODE: OPENBRIDGE
ENABLED: True

On the line [OBP-XYZ<->ABC] you can put what you want