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phpagi.php
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phpagi.php
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<?php
/**
* phpagi.php : PHP AGI Functions for Asterisk
* @see https://github.com/welltime/phpagi
* @filesource http://phpagi.sourceforge.net/
*
* $Id: phpagi.php,v 2.20 2010/09/30 02:21:00 masham Exp $
*
* Copyright (c) 2003 - 2010 Matthew Asham <matthew@ochrelabs.com>, David Eder <david@eder.us> and others
* All Rights Reserved.
*
* This software is released under the terms of the GNU Lesser General Public License v2.1
* A copy of which is available from http://www.gnu.org/copyleft/lesser.html
*
* We would be happy to list your phpagi based application on the phpagi
* website. Drop me an Email if you'd like us to list your program.
*
*
* Written for PHP 4.3.4, should work with older PHP 4.x versions.
*
* Please submit bug reports, patches, etc to https://github.com/welltime/phpagi
*
*
* @package phpAGI
* @version 2.20
*/
if (!class_exists('AGI_AsteriskManager'))
{
require_once(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'phpagi-asmanager.php');
}
define('AST_CONFIG_DIR', '/etc/asterisk/');
define('AST_SPOOL_DIR', '/var/spool/asterisk/');
define('AST_TMP_DIR', AST_SPOOL_DIR . '/tmp/');
define('DEFAULT_PHPAGI_CONFIG', AST_CONFIG_DIR . '/phpagi.conf');
define('AST_DIGIT_ANY', '0123456789#*');
define('AGIRES_OK', 200);
define('AST_STATE_DOWN', 0);
define('AST_STATE_RESERVED', 1);
define('AST_STATE_OFFHOOK', 2);
define('AST_STATE_DIALING', 3);
define('AST_STATE_RING', 4);
define('AST_STATE_RINGING', 5);
define('AST_STATE_UP', 6);
define('AST_STATE_BUSY', 7);
define('AST_STATE_DIALING_OFFHOOK', 8);
define('AST_STATE_PRERING', 9);
define('AUDIO_FILENO', 3); // STDERR_FILENO + 1
/**
* AGI class
*
* @package phpAGI
* @link http://www.voip-info.org/wiki-Asterisk+agi
* @example examples/dtmf.php Get DTMF tones from the user and say the digits
* @example examples/input.php Get text input from the user and say it back
* @example examples/ping.php Ping an IP address
*/
class AGI
{
/**
* Request variables read in on initialization.
*
* Often contains any/all of the following:
* agi_request - name of agi script
* agi_channel - current channel
* agi_language - current language
* agi_type - channel type (SIP, ZAP, IAX, ...)
* agi_uniqueid - unique id based on unix time
* agi_callerid - callerID string
* agi_dnid - dialed number id
* agi_rdnis - referring DNIS number
* agi_context - current context
* agi_extension - extension dialed
* agi_priority - current priority
* agi_enhanced - value is 1.0 if started as an EAGI script
* agi_accountcode - set by SetAccount in the dialplan
* agi_network - value is yes if this is a fastagi
* agi_network_script - name of the script to execute
*
* NOTE: program arguments are still in $_SERVER['argv'].
*
* @var array
* @access public
*/
var $request;
/**
* Config variables
*
* @var array
* @access public
*/
var $config;
/**
* Asterisk Manager
*
* @var AGI_AsteriskManager
* @access public
*/
var $asmanager;
/**
* Input Stream
*
* @access private
*/
var $in = NULL;
/**
* Output Stream
*
* @access private
*/
var $out = NULL;
/**
* Audio Stream
*
* @access public
*/
var $audio = NULL;
/**
* Application option delimiter
*
* @access public
*/
public $option_delim = ",";
/**
* Constructor
*
* @param string $config is the name of the config file to parse
* @param array $optconfig is an array of configuration vars and vals, stuffed into $this->config['phpagi']
*/
function __construct($config=NULL, $optconfig=array())
{
// load config
if(!is_null($config) && file_exists($config))
$this->config = parse_ini_file($config, true);
elseif(file_exists(DEFAULT_PHPAGI_CONFIG))
$this->config = parse_ini_file(DEFAULT_PHPAGI_CONFIG, true);
// If optconfig is specified, stuff vals and vars into 'phpagi' config array.
foreach($optconfig as $var=>$val)
$this->config['phpagi'][$var] = $val;
// add default values to config for uninitialized values
if(!isset($this->config['phpagi']['error_handler'])) $this->config['phpagi']['error_handler'] = true;
if(!isset($this->config['phpagi']['debug'])) $this->config['phpagi']['debug'] = false;
if(!isset($this->config['phpagi']['admin'])) $this->config['phpagi']['admin'] = NULL;
if(!isset($this->config['phpagi']['tempdir'])) $this->config['phpagi']['tempdir'] = AST_TMP_DIR;
// festival TTS config
if(!isset($this->config['festival']['text2wave'])) $this->config['festival']['text2wave'] = $this->which('text2wave');
// swift TTS config
if(!isset($this->config['cepstral']['swift'])) $this->config['cepstral']['swift'] = $this->which('swift');
ob_implicit_flush(true);
// open stdin & stdout
$this->in = defined('STDIN') ? STDIN : fopen('php://stdin', 'r');
$this->out = defined('STDOUT') ? STDOUT : fopen('php://stdout', 'w');
// initialize error handler
if($this->config['phpagi']['error_handler'] == true)
{
set_error_handler('phpagi_error_handler');
global $phpagi_error_handler_email;
$phpagi_error_handler_email = $this->config['phpagi']['admin'];
error_reporting(E_ALL);
}
// make sure temp folder exists
$this->make_folder($this->config['phpagi']['tempdir']);
// read the request
$str = fgets($this->in);
while($str != "\n")
{
$this->request[substr($str, 0, strpos($str, ':'))] = trim(substr($str, strpos($str, ':') + 1));
$str = fgets($this->in);
}
// open audio if eagi detected
if($this->request['agi_enhanced'] == '1.0')
{
if(file_exists('/proc/' . getmypid() . '/fd/3'))
$this->audio = fopen('/proc/' . getmypid() . '/fd/3', 'r');
elseif(file_exists('/dev/fd/3'))
{
// may need to mount fdescfs
$this->audio = fopen('/dev/fd/3', 'r');
}
else
$this->conlog('Unable to open audio stream');
if($this->audio) stream_set_blocking($this->audio, 0);
}
$this->conlog('AGI Request:');
$this->conlog(print_r($this->request, true));
$this->conlog('PHPAGI internal configuration:');
$this->conlog(print_r($this->config, true));
}
// *********************************************************************************************************
// ** COMMANDS **
// *********************************************************************************************************
/**
* Answer channel if not already in answer state.
*
* @link http://www.voip-info.org/wiki-answer
* @example examples/dtmf.php Get DTMF tones from the user and say the digits
* @example examples/input.php Get text input from the user and say it back
* @example examples/ping.php Ping an IP address
*
* @return array, see evaluate for return information. ['result'] is 0 on success, -1 on failure.
*/
function answer()
{
return $this->evaluate('ANSWER');
}
/**
* Get the status of the specified channel. If no channel name is specified, return the status of the current channel.
*
* @link http://www.voip-info.org/wiki-channel+status
* @param string $channel
* @return array, see evaluate for return information. ['data'] contains description.
*/
function channel_status($channel='')
{
$ret = $this->evaluate("CHANNEL STATUS $channel");
switch($ret['result'])
{
case -1: $ret['data'] = trim("There is no channel that matches $channel"); break;
case AST_STATE_DOWN: $ret['data'] = 'Channel is down and available'; break;
case AST_STATE_RESERVED: $ret['data'] = 'Channel is down, but reserved'; break;
case AST_STATE_OFFHOOK: $ret['data'] = 'Channel is off hook'; break;
case AST_STATE_DIALING: $ret['data'] = 'Digits (or equivalent) have been dialed'; break;
case AST_STATE_RING: $ret['data'] = 'Line is ringing'; break;
case AST_STATE_RINGING: $ret['data'] = 'Remote end is ringing'; break;
case AST_STATE_UP: $ret['data'] = 'Line is up'; break;
case AST_STATE_BUSY: $ret['data'] = 'Line is busy'; break;
case AST_STATE_DIALING_OFFHOOK: $ret['data'] = 'Digits (or equivalent) have been dialed while offhook'; break;
case AST_STATE_PRERING: $ret['data'] = 'Channel has detected an incoming call and is waiting for ring'; break;
default: $ret['data'] = "Unknown ({$ret['result']})"; break;
}
return $ret;
}
/**
* Deletes an entry in the Asterisk database for a given family and key.
*
* @link http://www.voip-info.org/wiki-database+del
* @param string $family
* @param string $key
* @return array, see evaluate for return information. ['result'] is 1 on sucess, 0 otherwise.
*/
function database_del($family, $key)
{
return $this->evaluate("DATABASE DEL \"$family\" \"$key\"");
}
/**
* Deletes a family or specific keytree within a family in the Asterisk database.
*
* @link http://www.voip-info.org/wiki-database+deltree
* @param string $family
* @param string $keytree
* @return array, see evaluate for return information. ['result'] is 1 on sucess, 0 otherwise.
*/
function database_deltree($family, $keytree='')
{
$cmd = "DATABASE DELTREE \"$family\"";
if($keytree != '') $cmd .= " \"$keytree\"";
return $this->evaluate($cmd);
}
/**
* Retrieves an entry in the Asterisk database for a given family and key.
*
* @link http://www.voip-info.org/wiki-database+get
* @param string $family
* @param string $key
* @return array, see evaluate for return information. ['result'] is 1 on sucess, 0 failure. ['data'] holds the value
*/
function database_get($family, $key)
{
return $this->evaluate("DATABASE GET \"$family\" \"$key\"");
}
/**
* Adds or updates an entry in the Asterisk database for a given family, key, and value.
*
* @param string $family
* @param string $key
* @param string $value
* @return array, see evaluate for return information. ['result'] is 1 on sucess, 0 otherwise
*/
function database_put($family, $key, $value)
{
$value = str_replace("\n", '\n', addslashes($value));
return $this->evaluate("DATABASE PUT \"$family\" \"$key\" \"$value\"");
}
/**
* Sets a global variable, using Asterisk 1.6 syntax.
*
* @link http://www.voip-info.org/wiki/view/Asterisk+cmd+Set
*
* @param string $pVariable
* @param string|int|float $pValue
* @return array, see evaluate for return information. ['result'] is 1 on sucess, 0 otherwise
*/
function set_global_var($pVariable, $pValue)
{
if (is_numeric($pValue))
return $this->evaluate("Set({$pVariable}={$pValue},g);");
else
return $this->evaluate("Set({$pVariable}=\"{$pValue}\",g);");
}
/**
* Sets a variable, using Asterisk 1.6 syntax.
*
* @link http://www.voip-info.org/wiki/view/Asterisk+cmd+Set
*
* @param string $pVariable
* @param string|int|float $pValue
* @return array, see evaluate for return information. ['result'] is 1 on sucess, 0 otherwise
*/
function set_var($pVariable, $pValue)
{
if (is_numeric($pValue))
return $this->evaluate("Set({$pVariable}={$pValue});");
else
return $this->evaluate("Set({$pVariable}=\"{$pValue}\");");
}
/**
* Executes the specified Asterisk application with given options.
*
* @link http://www.voip-info.org/wiki-exec
* @link http://www.voip-info.org/wiki-Asterisk+-+documentation+of+application+commands
* @param string $application
* @param mixed $options
* @return array, see evaluate for return information. ['result'] is whatever the application returns, or -2 on failure to find application
*/
function exec($application, $options)
{
if(is_array($options)) $options = join('|', $options);
return $this->evaluate("EXEC $application $options");
}
/**
* Plays the given file and receives DTMF data.
*
* This is similar to STREAM FILE, but this command can accept and return many DTMF digits,
* while STREAM FILE returns immediately after the first DTMF digit is detected.
*
* Asterisk looks for the file to play in /var/lib/asterisk/sounds by default.
*
* If the user doesn't press any keys when the message plays, there is $timeout milliseconds
* of silence then the command ends.
*
* The user has the opportunity to press a key at any time during the message or the
* post-message silence. If the user presses a key while the message is playing, the
* message stops playing. When the first key is pressed a timer starts counting for
* $timeout milliseconds. Every time the user presses another key the timer is restarted.
* The command ends when the counter goes to zero or the maximum number of digits is entered,
* whichever happens first.
*
* If you don't specify a time out then a default timeout of 2000 is used following a pressed
* digit. If no digits are pressed then 6 seconds of silence follow the message.
*
* If you don't specify $max_digits then the user can enter as many digits as they want.
*
* Pressing the # key has the same effect as the timer running out: the command ends and
* any previously keyed digits are returned. A side effect of this is that there is no
* way to read a # key using this command.
*
* @example examples/ping.php Ping an IP address
*
* @link http://www.voip-info.org/wiki-get+data
* @param string $filename file to play. Do not include file extension.
* @param integer $timeout milliseconds
* @param integer $max_digits
* @return array, see evaluate for return information. ['result'] holds the digits and ['data'] holds the timeout if present.
*
* This differs from other commands with return DTMF as numbers representing ASCII characters.
*/
function get_data($filename, $timeout=NULL, $max_digits=NULL)
{
return $this->evaluate(rtrim("GET DATA $filename $timeout $max_digits"));
}
/**
* Fetch the value of a variable.
*
* Does not work with global variables. Does not work with some variables that are generated by modules.
*
* @link http://www.voip-info.org/wiki-get+variable
* @link http://www.voip-info.org/wiki-Asterisk+variables
* @param string $variable name
* @param boolean $getvalue return the value only
* @return array, see evaluate for return information. ['result'] is 0 if variable hasn't been set, 1 if it has. ['data'] holds the value. returns value if $getvalue is TRUE
*/
function get_variable($variable,$getvalue=FALSE)
{
$res=$this->evaluate("GET VARIABLE $variable");
if($getvalue==FALSE)
return($res);
return($res['data']);
}
/**
* Fetch the value of a full variable.
*
*
* @link http://www.voip-info.org/wiki/view/get+full+variable
* @link http://www.voip-info.org/wiki-Asterisk+variables
* @param string $variable name
* @param string $channel channel
* @param boolean $getvalue return the value only
* @return array, see evaluate for return information. ['result'] is 0 if variable hasn't been set, 1 if it has. ['data'] holds the value. returns value if $getvalue is TRUE
*/
function get_fullvariable($variable,$channel=FALSE,$getvalue=FALSE)
{
if($channel==FALSE){
$req = $variable;
} else {
$req = $variable.' '.$channel;
}
$res=$this->evaluate('GET FULL VARIABLE '.$req);
if($getvalue==FALSE)
return($res);
return($res['data']);
}
/**
* Hangup the specified channel. If no channel name is given, hang up the current channel.
*
* With power comes responsibility. Hanging up channels other than your own isn't something
* that is done routinely. If you are not sure why you are doing so, then don't.
*
* @link http://www.voip-info.org/wiki-hangup
* @example examples/dtmf.php Get DTMF tones from the user and say the digits
* @example examples/input.php Get text input from the user and say it back
* @example examples/ping.php Ping an IP address
*
* @param string $channel
* @return array, see evaluate for return information. ['result'] is 1 on success, -1 on failure.
*/
function hangup($channel='')
{
return $this->evaluate("HANGUP $channel");
}
/**
* Does nothing.
*
* @link http://www.voip-info.org/wiki-noop
* @return array, see evaluate for return information.
*/
function noop($string="")
{
return $this->evaluate("NOOP \"$string\"");
}
/**
* Receive a character of text from a connected channel. Waits up to $timeout milliseconds for
* a character to arrive, or infinitely if $timeout is zero.
*
* @link http://www.voip-info.org/wiki-receive+char
* @param integer $timeout milliseconds
* @return array, see evaluate for return information. ['result'] is 0 on timeout or not supported, -1 on failure. Otherwise
* it is the decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function receive_char($timeout=-1)
{
return $this->evaluate("RECEIVE CHAR $timeout");
}
/**
* Record sound to a file until an acceptable DTMF digit is received or a specified amount of
* time has passed. Optionally the file BEEP is played before recording begins.
*
* @link http://www.voip-info.org/wiki-record+file
* @param string $file to record, without extension, often created in /var/lib/asterisk/sounds
* @param string $format of the file. GSM and WAV are commonly used formats. MP3 is read-only and thus cannot be used.
* @param string $escape_digits
* @param integer $timeout is the maximum record time in milliseconds, or -1 for no timeout.
* @param integer $offset to seek to without exceeding the end of the file.
* @param boolean $beep
* @param integer $silence number of seconds of silence allowed before the function returns despite the
* lack of dtmf digits or reaching timeout.
* @return array, see evaluate for return information. ['result'] is -1 on error, 0 on hangup, otherwise a decimal value of the
* DTMF tone. Use chr() to convert to ASCII.
*/
function record_file($file, $format, $escape_digits='', $timeout=-1, $offset=NULL, $beep=false, $silence=NULL)
{
$cmd = trim("RECORD FILE $file $format \"$escape_digits\" $timeout $offset");
if($beep) $cmd .= ' BEEP';
if(!is_null($silence)) $cmd .= " s=$silence";
return $this->evaluate($cmd);
}
/**
* Say the given digit string, returning early if any of the given DTMF escape digits are received on the channel.
*
* @link http://www.voip-info.org/wiki-say+digits
* @param integer $digits
* @param string $escape_digits
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if playback completes with no
* digit received, otherwise a decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function say_digits($digits, $escape_digits='')
{
return $this->evaluate("SAY DIGITS $digits \"$escape_digits\"");
}
/**
* Say the given number, returning early if any of the given DTMF escape digits are received on the channel.
*
* @link http://www.voip-info.org/wiki-say+number
* @param integer $number
* @param string $escape_digits
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if playback completes with no
* digit received, otherwise a decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function say_number($number, $escape_digits='')
{
return $this->evaluate("SAY NUMBER $number \"$escape_digits\"");
}
/**
* Say the given character string, returning early if any of the given DTMF escape digits are received on the channel.
*
* @link http://www.voip-info.org/wiki-say+phonetic
* @param string $text
* @param string $escape_digits
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if playback completes with no
* digit received, otherwise a decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function say_phonetic($text, $escape_digits='')
{
return $this->evaluate("SAY PHONETIC $text \"$escape_digits\"");
}
/**
* Say a given time, returning early if any of the given DTMF escape digits are received on the channel.
*
* @link http://www.voip-info.org/wiki-say+time
* @param integer $time number of seconds elapsed since 00:00:00 on January 1, 1970, Coordinated Universal Time (UTC).
* @param string $escape_digits
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if playback completes with no
* digit received, otherwise a decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function say_time($time=NULL, $escape_digits='')
{
if(is_null($time)) $time = time();
return $this->evaluate("SAY TIME $time \"$escape_digits\"");
}
/**
* Send the specified image on a channel.
*
* Most channels do not support the transmission of images.
*
* @link http://www.voip-info.org/wiki-send+image
* @param string $image without extension, often in /var/lib/asterisk/images
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if the image is sent or
* channel does not support image transmission.
*/
function send_image($image)
{
return $this->evaluate("SEND IMAGE $image");
}
/**
* Send the given text to the connected channel.
*
* Most channels do not support transmission of text.
*
* @link http://www.voip-info.org/wiki-send+text
* @param $text
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if the text is sent or
* channel does not support text transmission.
*/
function send_text($text)
{
return $this->evaluate("SEND TEXT \"$text\"");
}
/**
* Cause the channel to automatically hangup at $time seconds in the future.
* If $time is 0 then the autohangup feature is disabled on this channel.
*
* If the channel is hungup prior to $time seconds, this setting has no effect.
*
* @link http://www.voip-info.org/wiki-set+autohangup
* @param integer $time until automatic hangup
* @return array, see evaluate for return information.
*/
function set_autohangup($time=0)
{
return $this->evaluate("SET AUTOHANGUP $time");
}
/**
* Changes the caller ID of the current channel.
*
* @link http://www.voip-info.org/wiki-set+callerid
* @param string $cid example: "John Smith"<1234567>
* This command will let you take liberties with the <caller ID specification> but the format shown in the example above works
* well: the name enclosed in double quotes followed immediately by the number inside angle brackets. If there is no name then
* you can omit it. If the name contains no spaces you can omit the double quotes around it. The number must follow the name
* immediately; don't put a space between them. The angle brackets around the number are necessary; if you omit them the
* number will be considered to be part of the name.
* @return array, see evaluate for return information.
*/
function set_callerid($cid)
{
return $this->evaluate("SET CALLERID $cid");
}
/**
* Sets the context for continuation upon exiting the application.
*
* Setting the context does NOT automatically reset the extension and the priority; if you want to start at the top of the new
* context you should set extension and priority yourself.
*
* If you specify a non-existent context you receive no error indication (['result'] is still 0) but you do get a
* warning message on the Asterisk console.
*
* @link http://www.voip-info.org/wiki-set+context
* @param string $context
* @return array, see evaluate for return information.
*/
function set_context($context)
{
return $this->evaluate("SET CONTEXT $context");
}
/**
* Set the extension to be used for continuation upon exiting the application.
*
* Setting the extension does NOT automatically reset the priority. If you want to start with the first priority of the
* extension you should set the priority yourself.
*
* If you specify a non-existent extension you receive no error indication (['result'] is still 0) but you do
* get a warning message on the Asterisk console.
*
* @link http://www.voip-info.org/wiki-set+extension
* @param string $extension
* @return array, see evaluate for return information.
*/
function set_extension($extension)
{
return $this->evaluate("SET EXTENSION $extension");
}
/**
* Enable/Disable Music on hold generator.
*
* @link http://www.voip-info.org/wiki-set+music
* @param boolean $enabled
* @param string $class
* @return array, see evaluate for return information.
*/
function set_music($enabled=true, $class='')
{
$enabled = ($enabled) ? 'ON' : 'OFF';
return $this->evaluate("SET MUSIC $enabled $class");
}
/**
* Set the priority to be used for continuation upon exiting the application.
*
* If you specify a non-existent priority you receive no error indication (['result'] is still 0)
* and no warning is issued on the Asterisk console.
*
* @link http://www.voip-info.org/wiki-set+priority
* @param integer $priority
* @return array, see evaluate for return information.
*/
function set_priority($priority)
{
return $this->evaluate("SET PRIORITY $priority");
}
/**
* Sets a variable to the specified value. The variables so created can later be used by later using ${<variablename>}
* in the dialplan.
*
* These variables live in the channel Asterisk creates when you pickup a phone and as such they are both local and temporary.
* Variables created in one channel can not be accessed by another channel. When you hang up the phone, the channel is deleted
* and any variables in that channel are deleted as well.
*
* @link http://www.voip-info.org/wiki-set+variable
* @param string $variable is case sensitive
* @param string $value
* @return array, see evaluate for return information.
*/
function set_variable($variable, $value)
{
$value = str_replace("\n", '\n', addslashes($value));
return $this->evaluate("SET VARIABLE $variable \"$value\"");
}
/**
* Play the given audio file, allowing playback to be interrupted by a DTMF digit. This command is similar to the GET DATA
* command but this command returns after the first DTMF digit has been pressed while GET DATA can accumulated any number of
* digits before returning.
*
* @example examples/ping.php Ping an IP address
*
* @link http://www.voip-info.org/wiki-stream+file
* @param string $filename without extension, often in /var/lib/asterisk/sounds
* @param string $escape_digits
* @param integer $offset
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if playback completes with no
* digit received, otherwise a decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function stream_file($filename, $escape_digits='', $offset=0)
{
return $this->evaluate("STREAM FILE $filename \"$escape_digits\" $offset");
}
/**
* Enable or disable TDD transmission/reception on the current channel.
*
* @link http://www.voip-info.org/wiki-tdd+mode
* @param string $setting can be on, off or mate
* @return array, see evaluate for return information. ['result'] is 1 on sucess, 0 if the channel is not TDD capable.
*/
function tdd_mode($setting)
{
return $this->evaluate("TDD MODE $setting");
}
/**
* Sends $message to the Asterisk console via the 'verbose' message system.
*
* If the Asterisk verbosity level is $level or greater, send $message to the console.
*
* The Asterisk verbosity system works as follows. The Asterisk user gets to set the desired verbosity at startup time or later
* using the console 'set verbose' command. Messages are displayed on the console if their verbose level is less than or equal
* to desired verbosity set by the user. More important messages should have a low verbose level; less important messages
* should have a high verbose level.
*
* @link http://www.voip-info.org/wiki-verbose
* @param string $message
* @param integer $level from 1 to 4
* @return array, see evaluate for return information.
*/
function verbose($message, $level=1)
{
foreach(explode("\n", str_replace("\r\n", "\n", print_r($message, true))) as $msg)
{
@syslog(LOG_WARNING, $msg);
$ret = $this->evaluate("VERBOSE \"$msg\" $level");
}
return $ret;
}
/**
* Waits up to $timeout milliseconds for channel to receive a DTMF digit.
*
* @link http://www.voip-info.org/wiki-wait+for+digit
* @param integer $timeout in millisecons. Use -1 for the timeout value if you want the call to wait indefinitely.
* @return array, see evaluate for return information. ['result'] is 0 if wait completes with no
* digit received, otherwise a decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function wait_for_digit($timeout=-1)
{
return $this->evaluate("WAIT FOR DIGIT $timeout");
}
// *********************************************************************************************************
// ** APPLICATIONS **
// *********************************************************************************************************
/**
* Set absolute maximum time of call.
*
* Note that the timeout is set from the current time forward, not counting the number of seconds the call has already been up.
* Each time you call AbsoluteTimeout(), all previous absolute timeouts are cancelled.
* Will return the call to the T extension so that you can playback an explanatory note to the calling party (the called party
* will not hear that)
*
* @link http://www.voip-info.org/wiki-Asterisk+-+documentation+of+application+commands
* @link http://www.dynx.net/ASTERISK/AGI/ccard/agi-ccard.agi
* @param $seconds allowed, 0 disables timeout
* @return array, see evaluate for return information.
*/
function exec_absolutetimeout($seconds=0)
{
return $this->exec('AbsoluteTimeout', $seconds);
}
/**
* Executes an AGI compliant application.
*
* @param string $command
* @return array, see evaluate for return information. ['result'] is -1 on hangup or if application requested hangup, or 0 on non-hangup exit.
* @param string $args
*/
function exec_agi($command, $args)
{
return $this->exec("AGI $command", $args);
}
/**
* Set Language.
*
* @param string $language code
* @return array, see evaluate for return information.
*/
function exec_setlanguage($language='en')
{
return $this->exec('Set', 'CHANNEL(language)='. $language);
}
/**
* Do ENUM Lookup.
*
* Note: to retrieve the result, use
* get_variable('ENUM');
*
* @param $exten
* @return array, see evaluate for return information.
*/
function exec_enumlookup($exten)
{
return $this->exec('EnumLookup', $exten);
}
/**
* Dial.
*
* Dial takes input from ${VXML_URL} to send XML Url to Cisco 7960
* Dial takes input from ${ALERT_INFO} to set ring cadence for Cisco phones
* Dial returns ${CAUSECODE}: If the dial failed, this is the errormessage.
* Dial returns ${DIALSTATUS}: Text code returning status of last dial attempt.
*
* @link http://www.voip-info.org/wiki-Asterisk+cmd+Dial
* @param string $type
* @param string $identifier
* @param integer $timeout
* @param string $options
* @param string $url
* @return array, see evaluate for return information.
*/
function exec_dial($type, $identifier, $timeout=NULL, $options=NULL, $url=NULL)
{
return $this->exec('Dial', trim("$type/$identifier".$this->option_delim.$timeout.$this->option_delim.$options.$this->option_delim.$url, $this->option_delim));
}
/**
* Goto.
*
* This function takes three arguments: context,extension, and priority, but the leading arguments
* are optional, not the trailing arguments. Thuse goto($z) sets the priority to $z.
*
* @param string $a
* @param string $b;
* @param string $c;
* @return array, see evaluate for return information.
*/
function exec_goto($a, $b=NULL, $c=NULL)
{
return $this->exec('Goto', trim($a.$this->option_delim.$b.$this->option_delim.$c, $this->option_delim));
}
// *********************************************************************************************************
// ** FAST PASSING **
// *********************************************************************************************************
/**
* Say the given digit string, returning early if any of the given DTMF escape digits are received on the channel.
* Return early if $buffer is adequate for request.
*
* @link http://www.voip-info.org/wiki-say+digits
* @param string $buffer
* @param integer $digits
* @param string $escape_digits
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if playback completes with no
* digit received, otherwise a decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function fastpass_say_digits(&$buffer, $digits, $escape_digits='')
{
$proceed = false;
if($escape_digits != '' && $buffer != '')
{
if(!strpos(chr(255) . $escape_digits, $buffer{strlen($buffer)-1}))
$proceed = true;
}
if($buffer == '' || $proceed)
{
$res = $this->say_digits($digits, $escape_digits);
if($res['code'] == AGIRES_OK && $res['result'] > 0)
$buffer .= chr($res['result']);
return $res;
}
return array('code'=>AGIRES_OK, 'result'=>ord($buffer{strlen($buffer)-1}));
}
/**
* Say the given number, returning early if any of the given DTMF escape digits are received on the channel.
* Return early if $buffer is adequate for request.
*
* @link http://www.voip-info.org/wiki-say+number
* @param string $buffer
* @param integer $number
* @param string $escape_digits
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if playback completes with no
* digit received, otherwise a decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function fastpass_say_number(&$buffer, $number, $escape_digits='')
{
$proceed = false;
if($escape_digits != '' && $buffer != '')
{
if(!strpos(chr(255) . $escape_digits, $buffer{strlen($buffer)-1}))
$proceed = true;
}
if($buffer == '' || $proceed)
{
$res = $this->say_number($number, $escape_digits);
if($res['code'] == AGIRES_OK && $res['result'] > 0)
$buffer .= chr($res['result']);
return $res;
}
return array('code'=>AGIRES_OK, 'result'=>ord($buffer{strlen($buffer)-1}));
}
/**
* Say the given character string, returning early if any of the given DTMF escape digits are received on the channel.
* Return early if $buffer is adequate for request.
*
* @link http://www.voip-info.org/wiki-say+phonetic
* @param string $buffer
* @param string $text
* @param string $escape_digits
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if playback completes with no
* digit received, otherwise a decimal value of the DTMF tone. Use chr() to convert to ASCII.
*/
function fastpass_say_phonetic(&$buffer, $text, $escape_digits='')
{
$proceed = false;
if($escape_digits != '' && $buffer != '')
{
if(!strpos(chr(255) . $escape_digits, $buffer{strlen($buffer)-1}))
$proceed = true;
}
if($buffer == '' || $proceed)
{
$res = $this->say_phonetic($text, $escape_digits);
if($res['code'] == AGIRES_OK && $res['result'] > 0)
$buffer .= chr($res['result']);
return $res;
}
return array('code'=>AGIRES_OK, 'result'=>ord($buffer{strlen($buffer)-1}));
}
/**
* Say a given time, returning early if any of the given DTMF escape digits are received on the channel.
* Return early if $buffer is adequate for request.
*
* @link http://www.voip-info.org/wiki-say+time
* @param string $buffer
* @param integer $time number of seconds elapsed since 00:00:00 on January 1, 1970, Coordinated Universal Time (UTC).
* @param string $escape_digits
* @return array, see evaluate for return information. ['result'] is -1 on hangup or error, 0 if playback completes with no