Dial plans

Dial plans are a set of translation rules used to convert the dialing habits of our company to the E.164 standard. The way our users compose a number is a mix of dialing public numbers and reaching internal extents. The aforementioned scenario means that dial plans will be tied to the story of the specific company.

Dial plans in the Lync Control Panel have a dedicated tab, which we can see in the following screenshot:

When we create a new rule, we can add associated normalization rules, as shown in the following screenshot:

Normalization rules are based on regular expressions, such as the following ones:

Regular Expression	Examples	Target String	Match
^ matches at the beginning of the string	^(187)	18776967786	187
\d matches any digit	\d	[phone]	18776967786
\d{x} matches any x digits	(\d{3}\d+)	[phone]	18776967786 requires the number to be at least 3-character long)
(x)|(y) x or y	(9)|(76)	[phone]	9
[..] matches any...