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TAPI telephony & Caller ID

Posted on 1997-08-18
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Last Modified: 2010-04-06
Hey all...I'm writing a telephony component using TAPI. Currently I have implemented dialling using a name and phone number.

However I need to implement a OnIncomingCall event which can extract an incoming call's number which can then be used in an event handler...kind of like a simple Caller ID feature. Does anyone have any idea how to monitor a TAPI line and extract incoming call information...such as an originating phone number?

The component (TPhone) will be freeware, so whoever helps me out will get a joint author credit.
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Question by:imranali
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ewalker earned 100 total points
ID: 1341791
Imranali, First you have to open a TAPI Line, for monitoring or owning. (Be carefull with this, you can only open for monitoring if another application has ownership of the call, if you open for ownership then you have to handle the call yourself). You will then received messages when you received a call.  Then using the line handle from openinig the line, you can ask TAPI for information about the call.  Which is where you will find the callerID information.  The call that you are interested in is lineGetCallInfo.  If you want to know more info about this kinda of stuff, you might look at the book MAPI, SAPI & TAPI by Michael Amundsen by SAMS.  It has some good info.
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