Veritape Blog

What does CallGuard have in common with jellyfish and coloured stones?

They all use types of filter.

Nuclear power plant filter: stops jellyfish - www.bbc.co.uk/news/uk-scotland-edinburgh-east-fife-13971005

Chelsea filter: stops particular wavelengths of light, to assist the identification of coloured stones - http://en.wikipedia.org/wiki/Chelsea_filter

Wimbledon Net Mix: quietens the “grunt” - http://www.bbc.co.uk/5live/wimbledon/netmix

CallGuard Filter: stops your credit card data being stored in call recordings - http://www.callguard.co/callguard