You can use voicemail to capture a caller’s message if a call recipient is unavailable. This guide shows how to set up voicemail, either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.
You can create and deploy a workflow to implement voicemail with a few clicks on the PHLO canvas.
To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming calls, you must have a voice-enabled Plivo phone number. You can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API.
To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.
Click CREATE NEW PHLO.
Click the Start node to open the Configuration tab, then enter from and to as keys in the API Request section. To keep the PHLO dynamic, don‘t enter values for the variables.
Once you’ve configured the node, save the configuration by clicking Validate. Do the same for each node as you go along.
From the list of components on the left side, drag and drop the Record Audio component onto the canvas. When a component is placed on the canvas it becomes a node. In its Configuration tab, give the node a descriptive name, such as Voicemail_Message, and enter text for a message you want to play to callers.
Draw a line to connect the Start node‘s Incoming Call trigger state to the Record Audio node.
Once a message is recorded, send the URL of the recording to a responsible party. To do that, drag and drop the Send Message component into the canvas, and rename it Send_Recording_URL.
In its Configuration tab, enter variables for the From and To fields. Enter two curly brackets to view all available variables, and choose the appropriate ones. PHLO will get the number from the key/value pairs set in the Start node. In the Message field, enter a message that provides context for the voicemail recipient. The message can be static or dynamic or a combination of the two.
Your complete PHLO should look like this.
Once you‘ve created and configured your PHLO, assign it to a Plivo number.
You can now call your Plivo phone number and see how the voicemail PHLO works.
Here’s how to implement voicemail using XML.
To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. You must have a voice-enabled Plivo phone number to receive incoming calls; you can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Python development environment and a web server and safely expose that server to the internet.
Create a file called
voicemail.py and paste into it this code.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 # -*- coding: utf-8 -*- from flask import Flask, Response, request, url_for from plivo import plivoxml app = Flask(__name__) @app.route('/voicemail/', methods=['GET','POST']) def voicemail(): response = plivoxml.ResponseElement() response.add( plivoxml.SpeakElement( 'Please leave a message. Press the star key when you\'re done')) response.add( plivoxml.RecordElement( action='https://<yourdomain>.com/get_recording/', max_length=30, finish_on_key='*')) response.add(plivoxml.SpeakElement('Recording not received')) return Response(response.to_string(), mimetype='application/xml') if __name__ == '__main__': app.run(host='0.0.0.0', debug=True)
Save the file and run it.
$ python voicemail.py
You should see your basic server application in action at http://localhost:5000/voicemail/.
Give your application a name — we called ours
Voicemail. Enter the server URL you want to use (for example
https://<yourdomain>.com/voicemail/) in the
Answer URL field and set the method to
GET. Click Create Application to save your application.
Navigate to the Numbers page and select the phone number you want to use for this application.
From the Application Type drop-down, select
From the Plivo Application drop-down, select
Voicemail (the name we gave the application).
Click Update Number to save.
Make a call to your Plivo number and leave yourself a voicemail message.