Orchid Telecom PBX 308 System Administration Manual page 8

A useful feature if you want to keep lines 1 and 2 free for incoming calls or other priority
Extensions for outgoing calls. This does not restrict other extensions from using the same outside
line.
Example:
To restrict extension 208 to use exchange line 3 only.
Off Hook
Ext 201
This applies only Outgoing calls only, incoming calls can be answered by all extensions.
Example:
To assign Extensions 207 and 208 to be the only Extensions that can make outgoing calls
on line 3.
Off Hook
Ext 201
Dial: Password * 42
Dial: Password * 41 207 # * 41 208 #
3 208 #
Line Extension
On Hook
On Hook
Ext 201
Ext 201
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