22Call SIP是一款供您日常业务沟通之用的网络电话，无论您身在何处，均可保持连接。它是一种独立网络电话订阅，而不是一项VoIP服务。不妨免费试用14天！如果在试用期内取消，则不会收取任何费用。拨打电话需要一台SIP服务器，或向基于SIP的VoIP提供商进行订购。如果您需要技术支持，或者需要合作可以随时联系我们。
22Call SIP is an Internet phone for your daily business communication, you can stay connected no matter where you are. It is an independent VoIP subscription, not a VoIP service. Try it free for 14 days! If you cancel within the trial period, no fee will be charged. A SIP server is required to make a call, or order from a SIP-based VoIP provider. If you need technical support, or need cooperation, you can contact us at any time.
22Call SIP is an Internet phone for your daily business communication, you can stay connected no matter where you are. It is an independent VoIP subscription, not a VoIP service. Try it free for 14 days! If you cancel within the trial period, no fee will be charged. A SIP server is required to make a call, or order from a SIP-based VoIP provider. If you need technical support, or need cooperation, you can contact us at any time.
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