toll call telephone

基本解释

A regional toll call requires that the user to dial "1" plus an area code before dialing the7-digit telephone number.
用户拨打长途须在区号前加拨数位“1”，然后输入7位电话号码。
Instead of coupons, it places toll-free telephone numbers on local-search pages—its biggest partner is AOL—and charges advertisers only when they receive a live call from a consumer.
与优惠券不同的是，它把免费电话号码放在本地搜索的网页上—它最大的股东是美国在线—只有当广告主接到一个从消费者打来的有效电话他才需要为他的广告支付费用。
Patients monitor themselves daily and call a toll-free telephone line to answer some simple questions about weight gain, swelling and breathing difficulties.
患者每天自行监测，可拨打免费电话就简单问题咨询，如体重增加，水肿和呼吸困难。