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9. The Mobile Web > Make Phone Calls from Web Pages

Make Phone Calls from Web Pages

You might have seen how you can click a link to dial your phone from your wireless operator’s 411 service portal page. But how does this work? Well, the process is really easy, with a special WAP interface known as WTAI.

One of the coolest features in WML is its support for telephony functions known as the Wireless Telephony Applications Interface (WTAI). A Nokia WML browser allows users to make phone calls, send touch tones, and update the phone’s Contacts list directly from a web page! Since the mobile phone is still primarily a voice communications tool, the ability to integrate the telephone experience with the web-browsing experience proves to be very useful. You can do that with either specially formatted URLs or WML-Script function calls.


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