tapi协议是电话应用编程的接口。该程序能有效的利用电话业务供应商的服务，既可以通过一个模拟的modem访问也可以访问专用的交换机提供的高级功能-TAPI phone agreement is the application programming interface. The procedures are effective in the use of telephone services providers in the services, through a simulated visit