Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series IP Phones276To configure a key tone via web user interface:1. Press Menu->Basic->Sound->Key Tone.2. Press or , or the Switch soft key to select the desired value from the Key Tonefield.3. Press the Save soft key to accept the change.Dial PlanDial plan is a string of characters that governs the way for IP phones to process the inputsreceived from the IP phone’s keypads. You can use regular expression to define dial plan.Regular expression, often called a pattern, is an expression that specifies a set of strings. Aregular expression provides a concise and flexible means to “match” (specify and recognize)strings of text, such as particular characters, words, or patterns of characters.Yealink IP phones support two methods to help creating a dial plan: Dial Plan using XMLTemplate Files (old dial plan mechanism) and Dial Plan using Digit Map String Rules (new dialplan mechanism). Old dial plan method supports replace rule, dial now, area code and block outfeatures, and each dial plan feature need its own matching rule. By contrast, new dial plansupports one or more matching rules in one digit map string. It is helpful for completingmultiple dial plan features: replace, dial now, block out, etc by one matching string.If you enable new dial plan mechanism, old dial plan will be ignored.Yealink IP phones support the following dial plan features: Replace Rule Dial Now Area Code Block OutYou can configure these dial plan features via web user interface or using configuration files.You can select to add a replace rule/dial now rule one by one or using the replace rule/dial nowtemplate file to add multiple replace rules at a time.You need to know the following basic regular expression syntax when creating old dial plan:.The dot “.” can be used as a placeholder or multiple placeholders forany string. Example:“12.” would match “123”, “1234”, “12345”, “12abc”, etc.xThe “x” can be used as a placeholder for any character. Example:“12x” would match “121”, “122”, “123”, “12a”, etc.- The dash “-” can be used to match a range of characters within the
