Configuring Basic Features219Multiple Call AppearancesYou can enable each registered line on the phone to support multiple concurrent calls. Forexample, you can place one call on hold, switch to another call on the same registered line, andhave both calls display.You can set the maximum number of concurrent calls per line key on a phone or a per-line basis.For example, if you configure the maximum number of concurrent calls per line key for account1 to three, you can only have three call appearances on line 1. The additional incoming calls willbe rejected. If you assign a registered line to multiple line keys (refer to Multiple Line Keys perAccount), the number of concurrent calls applies to all line keys. That is, you can have three callappearances per line key.ProcedureMultiple call appearances can be configured using the configuration files.Central Provisioning(Configuration File).cfgSpecify the number of concurrent calls foreach line key on a phone basis.Parameter:phone_setting.call_appearance.calls_per_linekey.cfgSpecify the number of concurrent calls foreach line key on a per-line basis.Parameter:account.X.phone_setting.call_appearance.calls_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