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<H1><A NAME="_tapi2_lineaddrfeature__constants"></A>LINEADDRFEATURE_ Constants</H1>
<P>The LINEADDRFEATURE_ constants list the operations that can be invoked on an address.
<DL>
<DT>LINEADDRFEATURE_FORWARD </DT>
<DD>The address can be forwarded. </DD>
<DT>LINEADDRFEATURE_MAKECALL </DT>
<DD>An outgoing call can be placed on the address. </DD>
<DT>LINEADDRFEATURE_PICKUP </DT>
<DD>A call can be picked up at the address. </DD>
<DT>LINEADDRFEATURE_PICKUPDIRECT </DT>
<DD>The <B>linePickup</B> function can be used to pick up a call on a specific address. </DD>
<DT>LINEADDRFEATURE_PICKUPGROUP </DT>
<DD>The <B>linePickup</B> function can be used to pick up a call in the group. </DD>
<DT>LINEADDRFEATURE_PICKUPHELD </DT>
<DD>The <A HREF="func2_6do0.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_6do0.htm"><B>linePickup</B></A> function (with a null destination address) can be used to pick up a call that is held on the address. This is normally used only in a bridged-exclusive arrangement. </DD>
<DT>LINEADDRFEATURE_PICKUPWAITING </DT>
<DD>The <A HREF="func2_6do0.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_6do0.htm"><B>linePickup</B></A> function (with a null destination address) can be used to pick up a call waiting call. Note that this does not necessarily indicate that a waiting call is actually present, because it is often impossible for a telephony device to automatically detect such a call; it does, however, indicate that the hook-flash function will be invoked to attempt to switch to such a call. </DD>
<DT>LINEADDRFEATURE_SETMEDIACONTROL </DT>
<DD>Media control can be set on this address. </DD>
<DT>LINEADDRFEATURE_SETTERMINAL </DT>
<DD>The terminal modes for this address can be set. </DD>
<DT>LINEADDRFEATURE_SETUPCONF </DT>
<DD>A conference call with a NULL initial call can be set up at this address. </DD>
<DT>LINEADDRFEATURE_UNCOMPLETECALL </DT>
<DD>Call completion requests can be canceled at this address. </DD>
<DT>LINEADDRFEATURE_UNPARK </DT>
<DD>Calls can be unparked using this address.
<P class=note><B>Note</B> If none of the new modified "PICKUP" bits is set in the <B>dwAddressFeatures</B> member in <A HREF="struc1_848i.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_848i.htm"><B>LINEADDRESSSTATUS</B></A> but the LINEADDRFEATURE_PICKUP bit <I>is</I> set, then any of the pickup modes may work; the service provider has simply not specified which ones.
</DD>
<DT>LINEADDRFEATURE_FORWARDDND </DT>
<DD>The <B>lineForward</B> function (with an empty destination address) can be used to turn on the Do Not Disturb feature on the address. LINEADDRFEATURE_FORWARD will also be set. </DD>
<DT>LINEADDRFEATURE_FORWARDFWD </DT>
<DD>The <A HREF="func1_36jo.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_36jo.htm"><B>lineForward</B></A> function can be used to forward calls on the address to other numbers. LINEADDRFEATURE_FORWARD will also be set.
<P class=note><B>Note</B> If neither of the new modified "FORWARD" bits is set in the <B>dwAddressFeatures</B> member in <A HREF="struc1_848i.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_848i.htm"><B>LINEADDRESSSTATUS</B></A> but the LINEADDRFEATURE_FORWARD bit <I>is</I> set, then any of the forward modes may work; the service provider has simply not specified which ones.
</DD>
</DL>
<P>No extensibility. All 32 bits are reserved. </P>
<P>This constant is used both in <A HREF="struc1_5uuq.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_5uuq.htm"><B>LINEADDRESSCAPS</B></A> (returned by <A HREF="func1_533n.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_533n.htm"><B>lineGetAddressCaps</B></A>) and in <A HREF="struc1_848i.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_848i.htm"><B>LINEADDRESSSTATUS</B></A> (returned by <A HREF="func1_5b5f.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_5b5f.htm"><B>lineGetAddressStatus</B></A>). <B>LINEADDRESSCAPS</B> reports the availability of the address features by the service provider (mainly the switch) for a given address. An application would make this determination when it initializes. The <B>LINEADDRESSSTATUS</B> structure reports, for a given address, which address features can actually be invoked while the address is in the current state. An application would make this determination dynamically after address-state changes, typically caused by call-related activities on the address. </P>
<H4><A HREF="javascript:if(confirm('http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm \n\n这个文件不能通过 Teleport Pro 取回, 因为 地址在一个域或为它的开始地址设定的边界的外部路径上. \n\n你想从服务器打开它吗?'))window.location='http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm'" tppabs="http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm">Requirements</A> </H4>
<P><B> Windows NT/2000: </B>Requires Windows NT 4.0 SP3 or later.<BR>
<B> Windows 95/98: </B>Requires Windows 95 or later.<BR>
<B> Version: </B>Requires TAPI 2.0 or later.<BR>
<B> Header: </B>Declared in Tapi.h.</P>
<H4>See Also</H4>
<P><A HREF="struc1_5uuq.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_5uuq.htm"><B>LINEADDRESSCAPS</B></A>, <A HREF="struc1_848i.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc1_848i.htm"><B>LINEADDRESSSTATUS</B></A>, <A HREF="func1_36jo.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_36jo.htm"><B>lineForward</B></A>, <A HREF="func1_533n.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_533n.htm"><B>lineGetAddressCaps</B></A>, <A HREF="func1_5b5f.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func1_5b5f.htm"><B>lineGetAddressStatus</B></A>, <A HREF="func2_6do0.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_6do0.htm"><B>linePickup</B></A></P>
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