ip电话记费系统 很好的记费系统 我喜欢 不知道到了没有-ip telephone billing system in the entry fee good system like I do not know that without the

一个电话计费程序，能够计算跨日通话费用的计算，并可以为一天设置三个时间段，他们的计时费用可异-A telephone billing program, is able to calculate the cost of跨日call basis, and can be set to three time a day, their cost may be different time