English translation for "direct call service"

直接呼叫服务

Example Sentences:

1.

The rapid development of voip technology and services has made a deep affection to the traditional telephony service , especially to the international or national direct call service 近年来， voip ( voiceoverip )技术及其业务的迅速发展，对传统的电信业务造成了巨大的冲击。

Similar Words：

"direct calculation of efficiency" English translation, "direct calibration" English translation, "direct call" English translation, "direct call facility" English translation, "direct call line" English translation, "direct calorimetry" English translation, "direct cannulation" English translation, "direct capacitance" English translation, "direct capacitance coupling" English translation, "direct capacitance meter" English translation