话中插接(call waiting)，通话保留(call hold)， 多方通话(multiparty call)，群内通讯(closed user group)，
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她和她的小组通过观察、访问、调查用户的家人并要求他们保留在不同欧洲国家的通话记录。
She and her team based their research on observation, interviews, surveys of users' homes and asking people to keep logbooks of their communications usage in several European countries.
苹果再一次清楚地认识到这一点，2007年9月苹果发布了iPod Touch - - -实际上就是保留了Wi - Fi而去掉了通话和蓝牙功能的iPhone。
Apple, again, clearly recognised that with its launch in September 2007 of the iPod Touch - essentially, the iPhone with the phone and Bluetooth systems taken out, but Wi-Fi left in.
尽管有上述的这些保留态度，你的通话对象仍然觉得用Skype来与朋友和家人保持联系，召开商务会议是一种十分便捷的方法。
Despite such reservations, your correspondent has found Skype a handy way of staying in touch with friends and family, and having business meetings.
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