Yealink SIP-T23P - Dial Plan

Customizing Your Phone
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You can configure multiple line keys to associate with an account. This enhances call
visualization and simplifies call handling.
If this is the case, the LCD screen will resemble 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-T23P/G IP phone
processes the inputs received from your phone keypad. The SIP-T23P/G IP phone
supports the following dial plan features:
 Replace Rule
 Dial-now
 Area Code
 Block Out
The basic expression syntax you need to know:
.
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.