Dialogic 6.2 - Manual (Page 217)

Managing Calls Using IP Telephony
November 2009 217
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):
See Sample INVITE Request on page 222 for more information about
using Bfv function calls.
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
CapabilityQuery
Indicates the transfer capability of a channel.
Also provides an application with information to
determine whether two particular lines are paired
to perform a two B-channel call transfer.
BfvWaitForComplete
Waits for the outgoing telephone call to finish.
BfvWaitForRelease
Waits for the termination of a telephone call to
finish.