Mobile operator Motorola and voice over IP (VoIP) software company Skype have joined forces to develop mobile handsets that can be used on VoIP networks to deliver free or cheaper calls to users.
The new handsets will initially be aimed at the 25 million-plus Skype users, who mainly rely on traditional fixed-line phones to make their VoIP calls.
"By making Voice over IP truly mobile and easily accessible, we can make communications seamless for users as they travel," said Liz Altman, Motorola Mobile Devices vice-president of business development.
"With more than 68 million downloads of their client software in the past 18 months, we believe Skype is a natural fit with our vision of simple and seamless connectivity for our customers," said Altman.
Motorola and Skype did not say when the first "Skype Ready" phones will be available. The pair will also have to persuade mobile operators to support the technology. Some experts believe mobile operators may be sceptical about supporting a technology that will allow cheaper or free calls to be made over their networks.