Extension of international telephone services 国际电话业务的扩展
International telephone calling services 国际电话呼叫服务
international maritime telephone services 国际船舶电话业务
international maritime satellite telephone services 国际海事卫星电话业务
An international organization using satellite communications and providing maritime telephone, telex, facsimile, telegram, data communication, distress and safety services.
一个利用卫星通信的国际组织，提供海上电话、电传、传真、电报、数据通信、海难以及保险等服务项目。
In-room telephone for your open direct international and domestic long distance services, allows you to enter free of cumbersome IP Numbers.
房内电话为您开通直拨国际国内长途服务，使您免于输入繁琐的IP号码。
Definition of: ISDN (Integrated Services digital Network) an international standard for switched, digital dial-up telephone service for voice and data.
定义：ISDN(综合服务数字网络)，是一个国际转换标准，是为了语音和数据的数码拨号上网电话服务。
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