iPhone app 22Call SIP - 基于SIP的一款拨号器

22Call SIPVoIP14SIPSIPVoIP

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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