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/*
This file is part of the GSM3 communications library for Arduino
-- Multi-transport communications platform
-- Fully asynchronous
-- Includes code for the Arduino-Telefonica GSM/GPRS Shield V1
-- Voice calls
-- SMS
-- TCP/IP connections
-- HTTP basic clients
This library has been developed by Telef�nica Digital - PDI -
- Physical Internet Lab, as part as its collaboration with
Arduino and the Open Hardware Community.
September-December 2012
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
The latest version of this library can always be found at
https://github.com/BlueVia/Official-Arduino
*/
#ifndef _GSM3VOICECALLSERVICE_
#define _GSM3VOICECALLSERVICE_
#include <GSM3MobileNetworkProvider.h>
#include <GSM3MobileVoiceProvider.h>
class GSM3VoiceCallService
{
private:
uint8_t flags;
/** Make synchronous the functions, if needed
@param returnvalue Return value
@return returns 0 if last command is still executing, 1 success, >1 error
*/
int waitForAnswerIfNeeded(int returnvalue);
public:
/** Service creation
@param synch If true, the service calls are synchronois
*/
GSM3VoiceCallService(bool synch=true);
/** Voice call status
@return Status of the voice call, as described in GSM3MobileVoiceProvider.h
{ IDLE_CALL, CALLING, RECEIVINGCALL, TALKING};
*/
GSM3_voiceCall_st getvoiceCallStatus();
/** Get last command status
@return Returns 0 if last command is still executing, 1 success, >1 error
*/
int ready();
/** Place a voice call. If asynchronous, returns while ringing. If synchronous
returns if the call is stablished or cancelled.
@param to Receiver number. Country extension can be used or not.
Char buffer should not be released or used until command is over
@param timeout In millisecods. Time ringing before closing the call.
Only used in synchronous mode.
If zero, ring undefinitely
@return In asynchronous mode returns 0 if last command is still executing, 1 success, >1 error
In synchronous mode returns 1 if the call is placed, 0 if not.
*/
int voiceCall(const char* to, unsigned long timeout=30000);
/** Accept an incoming voice call
@return In asynchronous mode returns 0 if last command is still executing, 1 success, >1 error
In synchronous mode returns 1 if the call is answered, 0 if not.
*/
int answerCall();
/** Hang a stablished call or an incoming ring
@return In asynchronous mode returns 0 if last command is still executing, 1 success, >1 error
In synchronous mode returns 1 if the call is answered, 0 if not.
*/
int hangCall();
/** Retrieve the calling number, put it in buffer
@param buffer pointer to the buffer memory
@param bufsize size of available memory area, at least should be 10 characters
@return In asynchronous mode returns 0 if last command is still executing, 1 success, >1 error
In synchronous mode returns 1 if the number is correcty taken 0 if not
*/
int retrieveCallingNumber(char* buffer, int bufsize);
};
#endif
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