Cellcrypt, a provider of mobile voice calling, has launched Secure Conference Service that provides both device authentication and voice call encryption to participants using popular mobile phones like BlackBerry and Nokia smartphones.

Cellcrypt said that its new offering enables firms to manage conference calls using a web console to define all users that may access the conferencing service, create bridge numbers, define policies. A bridge may allow access from selected public telephones using Caller ID and PINs for authentication in geographies where the threat of interception is regarded as controlled.

To enter the call, participants have to select a bridge number from their Cellcrypt Mobile enabled Blackberry or Nokia smartphone. Office phones can also participate in conference calls when connected via Cellcrypt’s Enterprise Gateway solution.

Simon Bransfield-Garth, CEO of Cellcrypt, said: "Conference calls by their very nature typically contain some of the most sensitive and confidential information an organisation has.

"As the risk of cellular interception has increased so has the vulnerability of mobile executives accessing conference calls from the mobile phones. Organisations should urgently review their communications practices and act to protect their mission-critical conference calls."