English translation for "callblocking"

1.呼叫限制服务〔指电话局允许用户阻断某一电话号码打给用户的服务〕。
2.(通话量超负荷造成的)电话系统堵塞。

Similar Words：

"callback routines" English translation, "callback security" English translation, "callback type" English translation, "callbell" English translation, "callberg" English translation, "callbo" English translation, "callboard" English translation, "callboy" English translation, "callbuyer" English translation, "callby" English translation