1.6 FFeature Manual 871.6.4 Flexible Numbering/Fixed NumberingDescriptionTo dial another extension user or to access PBX features, the access numbers (extension numbers orfeature numbers) are required.There are three types of numbering plans:1) Flexible Numbering (available while a dial tone is heard)2) Flexible Numbering (available while busy, DND, or ringback tone is heard)3) Fixed Numbering (available while dialing or talking)1. Flexible Numbering (available while a dial tone is heard)Extension numbers and feature numbers which are available while a dial tone is heard can becustomized for easy use. The numbers must not conflict. It is also possible to use default (Pattern 1 orPattern 2) shown in the following table:a) Extension Numbers: Extension numbers consist of leading numbers and additional numbers.Extension numbers (consisting of “0” through “9”) can be assigned as follows:• Numbering schemes: 1-64• Leading number: up to three digits• Additional number: up to two digits (default: two digits)[Example]If the number "3" is programmed as a leading number for the 1st extension numbering scheme,and "XX" is programmed as the additional digits, extension numbers 300 through 399 are available.b) Feature Numbers: Up to four digits, consisting of 0-9, " ", and "#"[Flexible Numbering Table (available while a dial tone is heard)]Feature DefaultPattern 1(with )Pattern 2(without )Extension Numbering Scheme 1—Leading Number 1 / 2 10Extension Numbering Scheme 2—Leading Number 2 / 3 11Extension Numbering Scheme 3—Leading Number 3 / 4 12Extension Numbering Scheme 4—Leading Number 4 / 1 13Extension Numbering Scheme 5—Leading Number None 14Extension Numbering Scheme 6—Leading Number None 15Extension Numbering Scheme 7—Leading Number None 16Extension Numbering Scheme 8—Leading Number None 17Extension Numbering Scheme 9—Leading Number None 18Extension Numbering Scheme 10—Leading Number None NoneExtension Numbering Scheme 11—Leading Number None 20
