Call Forward Ring Cycles
A call-forward no-answer (CFNA) will occur after a set number of ring cycles. There
are three ring cycle options available, RCO 0-2.
The number of ring cycles for each option is determined by CFN0, CFN1 and CFN2 in the customer data block (RDR_DATA, LD 15).
Digital sets, LD 11:
CLS fna sfa FDN 5100 RCO (0)-2 - Ringing cycle option, prompted when CLS: FNA or MWA
Analog sets, LD 10:
CLS fna sfa FTR fdn 5100 RCO (0)-2 - Ringing cycle option, prompted when CLS: FNA or MWA
Call Forward Number, LD 15:
To program the number of ring cycles for each
ring cycle option (RCO), goto to LD 15 and change CFN0-2 values in the RDR_DATA block:
REQ: chg TYPE: rdr : CFN0 1-(4)-15 - Number of normal ringing cycles for CFNA, Option 0 (RCO 0) CFN1 1-(4)-15 - Number of normal ringing cycles for CFNA, Option 1 (RCO 1) CFN2 1-(4)-15 - Number of normal ringing cycles for CFNA, Option 2 (RCO 2)
RDR_DATA can be printed in LD 21.
By default all sets have RCO 0, and so will call forward after the number of ring cycles set by CFN0. In other words, if you change CFN0, the change will effect most, if not all, users - better is to give a user RCO 1 or 2, and set CFN1 or CFN2 to the desired number of rings for that user, leaving the RCO 0 users unaffected.
Note: Second Level call forward (forwarding a forward) requires SFA (Second Level CFNA Allowed) and CNIA (Call Number Information Allowed). SFA won't work without CNIA, and both are default disabled.