波多黎各人最喜欢聊天通话，这可能是因为打到家庭和朋友所在的美国本土的便宜套餐包含了无限制通话服务。
Puerto Ricans are the chattiest, probably because cheap plans include unlimited calls to the American mainland where family and friends are often based.
除使用“免提”装置在通话时将移动电话与头部和身体保持一定距离以外，限制通话次数和时间，也会减少接触量。
In addition to using "hands-free" devices, which keep mobile phones away from the head and body during phone calls, exposure is also reduced by limiting the number and length of calls.
苹果限制用到网络、GPS及其他与通话相关的资源的后台服务的使用a，以便节省电池寿命。
Apple restricts the use of background services that use the network, GPS, and other phone-related resources, in order to conserve battery life.
她在瑞士和法国的研究发现就算给他们无限制的免费通话或很便宜的通话资费，通话时间并没有明显增加。
Her research in Switzerland and France found that even when people are given unlimited cheap or free calls, the number and length of calls does not increase significantly.
Niel先生希望通过价格折半和提高通话时间限制，抢占大部分市场。
By halving prices and lifting limits on the length of calls, Mr Niel hopes to take a big slice of the market.
要很好地完成视频通话，手机制造商需要允许与计算机用户进行视频聊天，并且，这种聊天不受手机品牌的限制。
For this to work correctly, mobile handset makers will need to allow video chats with computer users and across mobile handsets.
可限制分机和外线每次通话时间。
Can set time limitation for each conversation between extension and exterior line.
你收费通话的限制曾经到达了，你想要如今注册吗？
Your free call limit is exceeded for today. Would you like to register?
多亏了移动电话，人们能自由通话，不受任何地点限制。
Anks to mobile phone, people can communicate freely without any confining of spa.
多亏了移动电话，人们能自由通话，不受任何地点限制。
Anks to mobile phone, people can communicate freely without any confining of spa.
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