User Guide for the SIP-T40P IP Phone62You can configure multiple line keys to associate with an account. This enhances callvisualization 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 keyand accounts with multiple line keys.Dial plan is a string of characters that governs the way your SIP-T40P IP phone processesthe inputs received from your phone keypad. The SIP-T40P IP phone supports thefollowing dial plan features: Replace Rule Dial-now Area Code Block OutThe basic expression syntax you need to know:.The dot "." can be used as a placeholder or multiple placeholders for anycharacter. Example:"12." would match "123 ", "123 4", "12345", "12abc", etc.x An "x" can be used as a placeholder for any character. Example:"12x" would match "121 ", "122 ", "123 ", "12a", etc.- Numeric ranges are allowed within the brackets: Digit “-” Digit. Example: