ZyXEL Communications Prestige 128IMH - Manual (Page 127)

Prestige 128IMH ISDN Modem/ Router/Hub
Advanced Phone Services 9-5
9.7 Call Forwarding
Call forwarding means the switch will ring another number at a place where you will be when
someone dials your directory number.
There are two methods to activate call forwarding. The first is exactly the same as on an analog
line, i.e., you pick up the handset and dial the access code assigned by your telephone company
and the number that you want the calls forwarded.
The second is with the “phone flash” commands where you pick up the handset and press the
flash key before dialing the following:
Table 9-1 Phone Flash Commands
Command Meaning
*20*forward-number# Activate CFB (Call Forwarding Busy)
*21*forward-number# Activate CFU (Call Forwarding Unconditional)
*22*forward-number# Activate CFNR (Call Forwarding No Reply)
#20# Deactivate CFB
#21# Deactivate CFU
#22# Deactivate CFNR
Either method should work fine, and you can use whichever one you are most comfortable with.