Other companies like Symbol Technologies, SocketIP, and Digium have implemented this protocol in VoIP Terminals (phones), Media Gateway Controllers, and Softswitches.
Digium |
Among the firm's notable investments, Matrix Partners was an early stage investor in Apple Inc., Arrowpoint Communications, Digium, JBoss, JustFab, PSINet, SanDisk, Silverstream Software, TheLadders.com, Sonus Networks, Tivoli Software, Tollbridge Technologies, VERITAS Software, Vermeer Technologies Incorporated, and Xilinx.