Last Updated Nov 24, 2009 2:34 PM EST
Sprint said it will appeal NAD's decision to the National Advertising Review Board. NAD tested Verizon's 3G against Sprint's using a Nielsen drive test:
Verizon Wireless had a lower connection failure rate and a lower task failure rate than Sprint and performed better in terms of session reliability.
[That] undermined Sprint's "most dependable" claim as to outdoor usage.NAD also looked at signal strength in indoor usage:
NAD had several concerns with the advertiser's signal strength evidence, including whether the evidence was a reliable indicator of the indoor dependability of the advertiser's network.Sprint said in a statement to NAD:
"[The company] maintains that its dependability claim is fully substantiated based on the results of the connection success and session reliability tests, together with results of the signal strength tests."