tkLABS has provided engineering and sub-contractor management services for over 8 years. tkLABS engineers were integral members of the team that designed and implemented high-speed data on the Sprint/Nextel network. The tkLABS team architected and integrated the internal TCP/IP data stack used on all Sprint-Nextel handsets. tkLABS was also part of the implementation team for “Group Connect” and “Direct Send” features available on most Sprint-Nextel handsets.