If a VPN solution that requires special client-side installed software is being used, then this poses a hurdle because an iPhone-compatible version of the VPN client is also required.
如果使用了一种VPN解决方案，这种解决方案需要使用安装了特殊客户端的软件，那么这将提出一个挑战，因为还需要一种与iPhone兼容的VPN客户端版本。
SSL VPN is a new VPN technology and for it's easy to implement, its client software is simpler, it plays a very important role in VPN market.
SSLVPN作为新出现的一种VPN技术由于实施方便，客户端要求低等诸多优点在VPN市场上占有重要角色。
SSL VPN does not need the complex client software, this is easy to install and the disposition, obviously reduces the cost.
SSLVPN不需要复杂的客户端支撑，这就易于安装和配置，明显降低成本。
SSL VPN does not need the complex client software, this is easy to install and the disposition, obviously reduces the cost.
SSLVPN不需要复杂的客户端支撑，这就易于安装和配置，明显降低成本。
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