Yealink SIP-T46G - Manual (Page 83)

Customizing Your Phone
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If this is the case, the LCD screen resembles the following figure:
Incoming calls to this account will be distributed evenly among the available line keys.
Outgoing calls will be distributed similarly.
Your phone can be configured to have a combination of accounts with a single line key
and accounts with multiple line keys.
Dial plan is a string of characters that governs the way your SIP-T46G IP phone
processes the inputs received from your phone keypad. The SIP-T46G IP phone supports
the following dial plan features:

Replace Rule

Dial-now

Area Code

Block Out
Basic expression syntaxes you need to know:
Syntax Description
.
The dot "." can be used as a placeholder or multiple placeholders for
any character. Example:
"12." would match "123", "1234", "12345", "12abc", etc.
x
An "x" can be used as a placeholder for any character. Example:
"12x" would match "121", "122", "123", "12a", etc.
[]
The square brackets "[]" can be used as a placeholder for a single
character which matches any of a set of characters. Example:
"91[5-7]1234" would match "9151234", "9161234", "9171234", etc.
()
The parentheses "( )" can be used to group together patterns, for
instance, to logically combine two or more patterns. Example:
"([1-9])([2-7])3" would match "923", "153", "773",etc.