Many telephone plans bundle "free" unlimited long-distanceservice with local calling service.
在市话服务中，有许多电话计划都包括“免费”无限制长途电话服务。
2
Content elaborates which based on this paper, can realize a standard, the advanced link long-distanceservice centralized billing system.
依据本论文所论述的内容，可以实现一个规范、先进的联通长途业务集中计费系统。
3
These companies buy their long-distanceservice wholesale from the larger telecommunications firms but offer the same general quality for far lower prices, billing by the minute or fraction thereof.