Dialogic 6.2 manual Outgoing IP Calls, November 217

Managing Calls Using IP Telephony

Outgoing IP Calls

Your application manages outgoing calls if it performs the following:

„Uses the function calls from the table below

„Does not do syntax validation of the dial string

„Relies on the return status from the BfvLineOriginateCall function to determine call completion success.

In this case the application is unaware of the mode of transport (PSTN or IP):

BfvCallDisconnect	Starts the process of terminating a telephone call.
BfvCallSetup	Starts the process of dialing an outgoing
	telephone call.
BfvCallStatus	Retrieves the channel’s current call state.
BfvLineDialString	Places the line in an OFF_HOOK state, dials the
	digits specified, and returns after dialing the last
	digit.
BfvLineOrigCallDB	Checks the specified dialing database for the
	specified telephone number, returns the amount
	of time to wait before dialing, and then places the
	call on an outgoing line and updates the dialing
	database.
BfvLineOriginateCall	Dials an outgoing call (equivalent to the
	BfvCallSetup and BfvCallWaitForComplete lower
	level function calls.)
BfvLineTerminateCall	Terminates the current call (equivalent to the
	BfvCallDisconnect and BfvCallWaitForRelease
	lower level function calls.)
BfvLineTransfer	Indicates the transfer capability of a channel.
CapabilityQuery	Also provides an application with information to
	determine whether two particular lines are paired
	to perform a two B-channelcall transfer.
BfvWaitForComplete	Waits for the outgoing telephone call to finish.
BfvWaitForRelease	Waits for the termination of a telephone call to
	finish.

See Sample INVITE Request on page 222 for more information about using Bfv function calls.

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