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

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Do you want to Develop your SIP Softphone? Try:
PortSIP VoIP SDK
Providing application developers with the resources they need to create SIP base applications and services, PortSIP presents SDK along with accompanying technical documentation, example codes.
Download the SDK, documentation and example codes »

Do you want to Develop your SIP base IVR server? Try:
PortSIP IVR SDK
Providing application developers with the resources they need to create SIP base IVR server and services, PortSIP presents SDK along with accompanying technical documentation, example codes.
Download the SDK, documentation and example codes »

Looking for a free SIP Softphone for audio and video call ? Try:
PortGo Softphone
PortGo is the newest SIP softphone from PortSIP, it's built base on PortSIP VoIP SDK, allowing users to enjoy multimedia communications in a dynamic way. Featuring an intuitive interface.
Download the Free PortGo Softphone »