Technical information

Technician’s Handbook
148
Toll Control does not apply when forwarding to system abbreviated dial
external numbers.
Toll Control does not apply to CO trunks which are externally call
forwarded.
The forwarding destination is the current stored speedcall key number,
personal abbreviated dial number, or system abbreviated dial number.
On a Call Forward - Busy or Call Forward - Always call, the COS
of the caller (trunk or extension) is checked. Keep this in mind
when transferring calls to a phone which is externally Call
Forwarded.