AltiGen comm ACM 5.1 manual Parameter Description, Extension, Number Length, Default Password

Chapter 4: System Configuration

To set the number plan, select System > System Configuration, then click the Number Plan tab.

Figure 2. System Configuration, Number Plan tab

Use the Number Plan tab to specify the following parameters:

Parameter	Description
Extension	The number of digits for your extension numbering system. Valid
Number Length	entries are from 3–6. For example, extension 2001 and 4020 are
	4-digit extension numbers.
	Note: Once the first extension is configured, the extension number
	length cannot be changed without totally reconfiguring the
	system or deleting all the extensions already configured.
	Further, if a first digit dialed is assigned to extensions and
	you have set up extensions beginning with that digit, you
	cannot change the digit assignment without first deleting all
	affected extensions. For example, if 7 is assigned to
	Extension and you’re using extensions 7010, 7113, and so
	on, you cannot reassign 7 to IP trunk access, without first
	deleting all the 7nnn extensions.
Default Password	The default password for newly created extensions is randomly
	generated by the system. (When the password is changed, it must
	be four to eight digits in length.)

AltiWare ACM 5.1 Administration Manual 55