Latest Legacy

Transfer a call

This API enables an in-progress or ongoing call to fetch and execute XML from a different URL. If the call (the A leg) is in a Dial, you can also transfer the other party (the B leg) at the same time, or only transfer the B leg to a URL. This is useful for applications where you want to asynchronously change the behavior of a live call. For example, you can play music while a call is on hold, queue calls, or transfer calls.

API Endpoint

POST https://api.plivo.com/v1/Account/{auth_id}/Call/{call_uuid}/

Arguments

legs

Valid values are aleg, bleg, or both. aleg transfers call_uuid. bleg transfers the bridged leg of call_uuid. both transfers both legs.

aleg_url Callback-retry configurable

The URL to fetch XML from for the A leg. This argument needs to be specified if the legs parameter is either aleg or both.

aleg_method

The HTTP verb to invoke the aleg_url.

Defaults to POST.

bleg_url Callback-retry configurable

The URL to fetch XML from for the B leg. This need to be specified if the legs parameter is either bleg or both.

bleg_method

The HTTP verb to invoke the bleg_url.

Defaults to POST.

Returns

Returns an acknowledgement that the call is transferred.

Response

HTTP Status Code: 202

{
"message": "call transferred",
"api_id": "08c94608-58bd-11e1-86da-adf28403fe48"
}

Example Request 

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import plivo

client = plivo.RestClient('<auth_id>','<auth_token>')

response = client.calls.transfer(
    legs='aleg',
    aleg_url='https://aleg.url',
    call_uuid='1ed7fd89-df77-4ebf-8196-d5cf7222c918', )
print(response)

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#
# Example for Call Update
#
require 'rubygems'
require 'plivo'

include Plivo
include Plivo::Exceptions

api = RestClient.new("<auth_id>","<auth_token>")

begin
  response = api.calls.update(
    'eba53b9e-8fbd-45c1-9444-696d2172fbc8',
    legs: 'aleg',
    aleg_url: 'https://aleg.url'
  )
  puts response
rescue PlivoRESTError => e
  puts 'Exception: ' + e.message
end

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// Example for Call update

var plivo = require('plivo');

(function main() {
    'use strict';
    
   // If auth id and auth token are not specified, Plivo will fetch them from the environment variables.
    var client = new plivo.Client("<auth_id>","<auth_token>");
    client.calls.transfer(
        "eba53b9e-8fbd-45c1-9444-696d2172fbc8", // call uuid
        {
            legs: "aleg",
            alegUrl: "https://aleg.url",
        },
    ).then(function (response) {
        console.log(response);
    }, function (err) {
        console.error(err);
    });
})();

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<?php
/**
 * Example for Call update
 */
require 'vendor/autoload.php';
use Plivo\RestClient;
use Plivo\Exceptions\PlivoRestException;
$client = new RestClient("<auth_id>","<auth_token>");

try {
    $response = $client->calls->transfer(
        'eba53b9e-8fbd-45c1-9444-696d2172fbc8',
        [
        	'legs' => 'aleg',
        	'aleg_url' => 'https://ALEG.URL'
        ]
    );
    print_r($response);
}
catch (PlivoRestException $ex) {
    print_r($ex);
}

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package com.plivo.api.samples.call;

import java.io.IOException;
import com.plivo.api.Plivo;
import com.plivo.api.exceptions.PlivoRestException;
import com.plivo.api.models.call.Call;
import com.plivo.api.models.call.CallUpdateResponse;
import com.plivo.api.models.call.LegSpecifier;

/**
* Example for Call update
*/
class CallUpdate {
    public static void main(String [] args) {
        Plivo.init("<auth_id>","<auth_token>");
        try {
            CallUpdateResponse response = Call.updater("eba53b9e-8fbd-45c1-9444-696d2172fbc8")
                .legs(LegSpecifier.ALEG)
                .alegUrl("https://aleg.url")
                .update();

            System.out.println(response);
        } catch (PlivoRestException | IOException e) {
            e.printStackTrace();
        }
    }
}

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/**
 * Example for Call Update
 */
using System;
using System.Collections.Generic;
using Plivo;
using Plivo.Exception;

namespace PlivoExamples
{
    internal class Program
    {
        public static void Main(string[] args)
        {
            var api = new PlivoApi("<auth_id>","<auth_token>");
            try
            {
                var response = api.Call.Transfer(
                    alegUrl:"https://aleg.url",
                    callUuid:"eba53b9e-8fbd-45c1-9444-696d2172fbc8",
                    legs:"aleg"
                );
                Console.WriteLine(response);
            }
            catch (PlivoRestException e)
            {
                Console.WriteLine("Exception: " + e.Message);
            }
        }
    }
}

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curl -i --user AUTH_ID:AUTH_TOKEN \
    -H "Content-Type: application/json" \
    -d '{"legs": "optional_param"}' \
    https://api.plivo.com/v1/Account/{auth_id}/Call/{call_uuid}/

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// Example for Call update
package main

import (
	"fmt"

	"github.com/plivo/plivo-go/v7"
)

func main() {
	client, err := plivo.NewClient("<auth_id>", "<auth_token>", &plivo.ClientOptions{})
	if err != nil {
		fmt.Print("Error", err.Error())
		return
	}
	response, err := client.Calls.Update(
		"eba53b9e-8fbd-45c1-9444-696d2172fbc8",
		plivo.CallUpdateParams{
			Legs:    "aleg",
			AlegURL: "https://aleg.url",
		},
	)
	if err != nil {
		fmt.Print("Error", err.Error())
		return
	}
	fmt.Printf("Response: %#v\n", response)
}