Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones236Parameter account.X.auto_label.enable[1] <MAC>.cfgDescriptionIt enables or disables the Auto Label feature. It is only applicable to the automaticallyassigned line DSS keys.Note: It works only if “features.auto_linekeys.enable” is set to 1 (Enabled). It is notapplicable to T19(P) E2 IP phones.PermittedValues0-Disabled, the line keys labels are determined by “account.X.label”.1-Enabled, the line keys labels are determined by the custom label rule (configure bythe parameter “accout.X.auto_label.rule”).Default 0Parameter account.X.auto_label.rule[1] <MAC>.cfgDescriptionIt configures the Auto Label rule.You need to know the following basic regular expression syntax:{L}: The value is configured by the parameter “account.X.label”.{N}: An increasing number from N. For example, abc{1}{5} represents the followinglabels: abc15, abc26, abc37, and so on.Multiple labels are separated by “|”. For example, Yea|Yea|Yea|Tom_{2} means todisplay “Yea” for first three line keys, and from the fourth one, display label Tom_2,Tom_3, and so on in turn.Other Characters: for example, ABC, will display ABC same as what you haveconfigured.Note: It works only if the values of the parameters “features.auto_linekeys.enable” and“account.X.auto_label.enable” are set to 1 (Enabled). The number of valid labels isconfigured by the parameter “account.X.number_of_linekey”. It is not applicable toT19(P) E2 IP phones.PermittedValues StringDefault {L}_{1}[1]X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; forT41P/T41S/T27P/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2.Default AccountIf there are multiple accounts registered on the phone, the phone will use the default account to dial outby default.From the idle screen, you can press the left or right navigation key to select the desired account as thedefault account for all IP phones. You can also do the following to configure the default account.The following table lists the parameters you can use to configure the default account.