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PortSIP's products are deployed by over 800 customers in more than 40 countries, include :
CallCentric is a FREE Broadband Phone Service allowing people to make & receive phone calls worldwide over the Internet, PortSIP customized a softphone for Callcentric in 2007.
HP purchased PortSIP VoIP SDK to integrate VoIP feature with Telecom Audio to their HPVR, this project is started in 2009 and runs well.
Philips purchased PortSIP VoIP SDK for Philips CareServant in 2007, this project is started in 2009 and runs well.
Siemens(India) purchased our PortSIP VoIP SDK for their IVR project in 2011.
Siemens Enterprise Communications purchased our PortSIP VoIP SDK in 2012.