English translation for "ring back test function"

回振铃测试功能

Example Sentences:

1.

Ring back test function 回振铃测试功能

Similar Words：

"ring back coil" English translation, "ring back key" English translation, "ring back sight" English translation, "ring back signal" English translation, "ring back telephone set" English translation, "ring back tone" English translation, "ring back tone connection" English translation, "ring back trunk" English translation, "ring back trunk circuit" English translation, "ring back winding" English translation