Orange is the latest UK network to cut its charges for charities that collect donations by text message, following similar action by O2, Vodafone and WIN plc.

The company says it'll now pass on 90% of all SMS donations between 15p and £10 to any registered charities. It gives 100% of all text donations to its own charity partners including Comic Relief, Sports Relief, Children in Need and the Royal British Legion’s Poppy Appeal.

Research from the Mobile Marketing Association and Lightspeed Research has revealed that almost a quarter of all UK, French and German people surveyed had donated to the Haitian Earthquake relief efforts. A total of 28.4% of these donors had used their mobile phones to pledge money; 21.4% via text and 7% by visiting a website from their mobile device.

In the UK, 9% of all donors used text and 8.6% visited a website from their mobile phone. However, mobile usage was much higher in France and Germany, where text donations came from 30% and 26% of all donors respectively.

The GSMA, which represents the interests of the worldwide mobile communications industry, has launched its own spam reporting service for text messages. At the moment it's just a pilot scheme and is being operated by AT&T Mobility, Korea Telecom and SFR.

Online security company Cloudmark will operate the GSMA Spam Reporting Service. It'll analyse SMS traffic submitted by customers of participating networks via a short code of '7726', which spells SPAM on most mobile phones.

The Organisation for Economic Co-operation and Development says Finland, the Netherlands and Sweden have the lowest prices for mobile phone calls among its 30 member countries.

The highest mobile call charges were according found in Canada, Spain and the USA.