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Softphone SDK, SIP SDK, VOIP SDK, Softphone, IVR SDK, IMS SDK,

Softphone SDK, SIP SDK, SIP softphone SDK, Free SIP video Softphone, Customization SIP Softphone, VOIP SDK,webphone,softphone ActiveX
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#522 in SIP, #2,898 in VoIP, #5,147 in Asterisk, #32,065 in Soft
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