⁶. At the Comdex trade show that fall in Las Vegas, the seven sponsoring cellular service providers demonstrated the CDPD prototype in a common booth. A second more-detailed release of the specification for the telephony-based system architecture was scheduled for publication immediately following the show. However, one of the cellular carriers abstained in the vote to approve the publication. A cautious voting process, in which an abstention could block action, arguably may have preserved the credibility of the cellular service providers as potential mobile data services providers.