Do I need to change my Customer Data Block RDR_DATA OPT?
First, print yours:
In "OPT" look for CFF or CFO.
at OPT, enter "CFF" or "CFO" - whichever you deem appropriate.
For the Impatient: You want OPT CFF if you want users to Call Forward "external".
Here are examples of CFF/CFO in action with Call Forward External:
If you have CFO. Notice how the NCOS is obtained from the trunk - and the CFW is blocked.
Caller --> Trunk(NCOS 0) --> Telephone(NCOS 3) on CFW --> BLOCKED - NCOS too low
If you have CFF. Notice how the NCOS is obtained from the forwarded telephone (this setting enables external Call forward)
OPT CFF = Obtain CLS and NCOS of the CFW'ing TN when determining restrictions.
Caller --> Trunk(NCOS 0) --> Telephone(NCOS 3) on CFW --> CFW to External
Link to this page: http://www.ghtrout.net/rdr/cff-cfo.html