PortSIP's products are deployed by over 400 customers in more than 30 countries, including these:
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/IMS SDK to integrate VoIP feature with Telecom Audio to their HPVR, this project is started in 2009 and runs well.
Philips purchased PortSIP VoIP/IMS SDK for Philips CareServant in 2007, this project is started in 2009 and runs well.
Siemens(India) purchased our PortSIP VoIP/IMS SDK for their IVR project in 2011.
Siemens Enterprise Communications purchased our PortSIP VoIP/IMS SDK in 2012.