3Com 3C10402B Administrator's Manual page 47

Call Forwarding
You cannot specify account codes as part of a forwarding number. If you
forward a call while forced account code entry is enabled, the call is
forwarded and you are not prompted to enter an account code. A side
effect of this feature interaction is that an internal extension could be
used to forward calls to an external number and thereby circumvent
forced account code entry.
International Dialing
If you enabled Force mode and a timeout occurs after you have entered
the minimum number of digits and are still dialing, the system prompts
you to enter an account code. After you enter the account code, you can
continue entering digits for the international number.
Paging
You can use Paging without entering an account code.
Call Park
If you entered an account code before you park a call, that call is
preserved when you unpark it. You can unpark calls without entering an
account code. You can enter a new account code after unparking the
call.
Redial
Account codes are not stored as part of the redial digits (except on analog
phones), even if you specified the account code as part of a speed dial
operation. If outbound digits are redialed while forced account code
mode is enabled, the system prompts you to enter an account code.
Speed Dial
Phones with programmable buttons and Attendant Consoles can use
speed dial with account codes. From the User interface of the NBX NetSet
utility:
Configure a one-touch speed dial with an account code. Click
■
Directory and then the One-Touch Speed Dial tab. Use the following
format in the Number field:
[888] + Account code + # + Outbound number
Account Codes 47