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Making a Call

You can take advantage of the fact that many mobile browsers also happen to be telephones and allow your visitors to make calls. To do so, you use a thing called WTAI (Wireless Telephony Applications Interface) to connect from the browser to the telephone (roughly speaking). First, you create a card that makes the call, using WTAI. Then, you link to that card from the card on your deck from which you want to make the call.

To create the card that makes a call

1.
Type <card id=“callcard” title=“Call”, where callcard and Call are the id and title attribute values (see page 372).

2.
Within the card, add onenterforward= “wtai://wp/mc;number”, where number is the phone number that should be dialed.

3.
Type > to finish the opening card tag.

4.
Then type </card>. (The card is never shown to your visitors, so it needs no content.)


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