Eyeball Inc. - Provides SIP client software, server software, and software development kits. Adore Softphone - Provides SIP softphone, web-to-phone, and click-to-call software. Media5 Corporation - Provides SIP products and applications for service providers and enterprise networks. PhonerLite - Offers SIP softphone freeware for Windows. English and German instructions. Voice Operator Panel - Provides a SIP softphone with switchboard for receptionists. ABTO VoIP SIP SDK - Provides a software development kit for adding SIP calling features to applications. Iscoord AG - Provides SIP softphones for service providers, integrated with Microsoft's UC platform, IBM's Lotus Notes and Sametime. Kapanga Softphone - Provides SIP video communications for desktop (Windows, Linux) and mobile (Windows Mobile and Android) platforms. VMobile Talk - Softphone for Android, Blackberry, iPhone and Windows PC. RedPhone - A softphone client for Windows. TekIVR - A SIP (Based on RFC 3261) Interactive Voice System (IVR) running under Windows. Acrobits Mobile VoIP solutions - A mobile software development company with a focus on SIP clients for mobile devices.