User Guide SIP-T38G IP Phone58If this is the case, the LCD screen could resemble the following figure:Incoming calls to this line will be distributed evenly among the available line keys.Similarly, outgoing calls will be distributed.Your phone can be configured to have a combination of lines with a single line key andlines with multiple line keys.Dial plan is a string of characters that governs the way your SIP-T38GIP phone processesthe inputs received from your phone keypad. The SIP-T38G IP phone supports thefollowing dial plan features: Replace Rule Dial-now Area Code Block OutThe basic expression syntax you need to know:Syntax Description.The dot "." can be used as a placeholder or multiple placeholders forany 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 singlecharacter 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, forinstance, to logically combine two or more patterns. Example:"([1-9])([2-7])3" would match "923", "153", "773",etc.