美国的一些电话公司已经提供呼叫限制服务，它能使用户阻挡来自骚扰者的电话。

Some phone companies in the us already offer call-blocking service, allowing the user to block calls from Numbers that are proving a nuisance.

youdao

美国的一些电话公司已经提供呼叫限制服务，它能使用户阻挡来自骚扰者的电话。

Some phone companies in the us already offer call-blocking service, allowing the user to block calls from Numbers that are proving a nuisance.

youdao