ORLANDO, Fla. - Global Wireless Solutions (GWS) completed its final performance testing of the four major wireless national carriers inside the Orange County Convention Center on Wednesday morning as the networks remained loaded with traffic with all those (us?) cell-phone toting convention attendees.

Voice network testing showed that Verizon Wireless occupied the top spot on this day, followed by AT&T, Sprintand T-Mobile USA. Cumulatively, over the three-day testing marathon, AT&T and Verizon maintained the fewest call failures, with Sprint and T-Mobile behind, the engineers report.

On the data side, indoor throughput tests of both AT&T’s and T Mobile’s HSPA+ networks yielded the same consistent performance seen on previous days. Sprint’s EV-DO network, however, still strained on the download, but the upload improved from Tuesday’s near dial-up speeds. T-Mobile provided the fewest task failures on Wednesday, and Verizon’s LTE network gained in consistency and performance. 

The GWS van repeated its mobile performance testing along the roadways and parking lots surrounding the convention center. AT&T, MetroPCS, T-Mobileand Verizon successfully completed all voice calls, but MetroPCS had one blocked call. The Verizon LTE network continued its performance with consistent download and upload throughputs. T Mobile and AT&T throughput followed behind Verizon. GWS says. Clearwire still struggled the most to handle the load with multiple task failures. The Sprint and Verizon EV-DO networks also came in behind T-Mobile and AT&T.