Normalization rules are associated with a dial plan and provide a way for administrators to translate dial strings users enter into full E.164 format. For instance, a country code and local area code might be automatically appended when a user tries to dial only seven digits. Many organizations used four- or five-digit internal extensions, and normalization rules can convert those dial patterns to a full E.164 number.
Administrators can either define the normalization rules using regular expressions or using the Normalization Rule tool. To create a new normalization rule, use the following steps:
1. On the Edit Dial Plan screen, click the New button in the Associated Normalization Rules section.
2. Provide a name for the rule ...