We called a line with a test tone and started covering up the phone (note, we cannot be sure this line is toll free, but we risked it).

我们用测试语气拨打了一个号码然后开始覆盖住手机(PS：我们不确定那个电话是免费的，但是我们还是冒险了)。

youdao

I called the toll-free reservation number for a major hotel chain. The reservation agent was very helpful, after I got through the long phone tree.

我拨通了一家有名的酒店连锁的免费预订电话。经过长长的一系列电话指示，我终于接通了预订的电话，他给了我很大的帮助。

youdao

When you have a question, help should be just a toll-free phone call or ane-mail away.

当你有一个问题，帮助应该是公正的免费电话或者电子邮件了。

youdao

People who file complaints with the FTC get a toll-free phone number for follow-up questions and are encouraged to contact state regulators.

WSJ: Consumers Cry Foul Over Debt Collectors

As a rule of thumb every FinTech company should provide a toll-free phone number no more than one click from your homepage.

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They send that code, via text message, to a toll-free phone number, and immediately receive a text back that indicates whether or not the drug is legit.

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