求问phone line call

[puddings]

编程的时候用到RPhone, RLine, RCall 这几个类，哪位达人给解释一下phone, line, call都怎么理解，越详细越好，谢了

[anel]

sdk有UML图
Example Applications > Dialer Example

[puddings]

谢楼上的，我不是问类的用法，我是想问这个line, call在通信里应该怎么理解

[anel]

据我的理解
line是电话线路
call是电话线路具体一次呼叫,挂机就被删除

[dyw]

The ETel client-side API consists of a session class RTelServer plus subsession classes to implement three fundamental abstractions: phones, lines and calls.

A phone is represented by the subsession class RPhone. This represents a particular telephony device. Its API provides access to the status and capabilities of the device and allows the client to be notified if these change.

A line is represented by the subsession class RLine. A phone can have one or more lines. RLine presents a single line and can be used to obtain status and capability information about it (for example, its hook status). As with RPhone, it also provides the capability to be notified if changes occur to the line.

A call is represented by the subsession class RCall. A line may have zero or more active calls, and an RCall object represents one such call. The RCall API is used to perform tasks such as dialing a number, waiting for an incoming call, and hanging up a call. As with the other subsessions, it can also be used to notify a client of changes to a call.

http://wiki.forum.nokia.com/index.php/Call_Handling

[toann]

RPhone可以理解为手机中的“电话”模块的高层抽象；
RLine可以理解为每次通话时所建立的“连接”；
RCall执行拨号、挂断来电，以及通话过程中线路的状态，比如通话中、拨号中、或者挂断了电话。

[anel]

楼上说得很好,LINE可以理解为"线程"