Configuring Basic Features237lls_per_linekeyDetails of Configuration Parameter:Parameter PermittedValues Defaultphone_setting.call_appearance.calls_per_linekey Integer from0 to 24 0Description:Configures the maximum number of concurrent calls per line key for the IP phone. It appliesto all registered lines.If it is set to 0, there is no limit for the number of concurrent calls.Example:phone_setting.call_appearance.calls_per_linekey = 2It means that you can have up to two concurrent calls per line key on the IP phone.Note: The value configured by the parameter“account.X.phone_setting.call_appearance.calls_per_linekey” takes precedence over thatconfigured by this parameter. It is not applicable to SIP-T19(P) E2/CP860 IP phones.Web User Interface:NonePhone User Interface:NonePer-Line Parameter:“account.X.phone_setting.call_appearance.calls_per_linekey” is the per-line parameter of theglobal parameter “phone_setting.call_appearance.calls_per_linekey”, and it takes precedenceover the global parameter.X stands for the serial number of the account.X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)X ranges from 1 to 12 (for SIP-T52S/T42G/T42S)X ranges from 1 to 6 (for SIP-T41P/T41S/T27P/T27G)X ranges from 1 to 3 (for SIP-T40P/T40G/T23P/T23G)X ranges from 1 to 2 (for SIP-T21(P) E2)Call DisplayDisplay contact photo allows the IP phone to present the contact avatar when it receives anincoming call, dials an outgoing call or engages in a call. To use this feature, make sure that youhave uploaded the avatar for the contact in advance. For more information, refer to Customizing
