This guide offers a detailed overview of best practices to make sure your SignalWire Agent operates effectively.

Learn how to execute SWML from a SWAIG function.

Learn how to use `set_meta_data` to store metadata to reference later.

Learn how to use `context_switch` to shift the focus of the conversation.

Learn how to create a voicemail bot using SWML.

The Santa AI we'll build together communicates with users over the phone in spoken natural language, powered by OpenAI and Eleven Labs' Text-To-Speech engine, to determine what they want for Christmas. Santa then uses the Real-Time Amazon Data API to search for the top three gifts based on their wishes. Once the user chooses their favorite gift, the Santa AI sends an SMS to the user with a link to the chosen gift.

Learn how to use `data_map` in SWML SWAIG functions to process, transform, and utilize incoming data effectively.

Learn how to use `toggle_functions` to toggle functions on and off.

A guide that shows you how to perform a Call Whisper using SWML.

Learn how to create an IVR with SWML.

Learn how to handle incomming calls from a remote server using SWML.

Learn how to get started with voice with the SignalWire Realtime SDK.

Learn how to record voicemails from your callers when you are unable to take the call.

Learn how to build a weather phone IVR application with the SignalWire Realtime SDK.

Learn how to stop robocalls with the SignalWire Realtime SDK.

Learn how to implement coaching and recording with the SignalWire Realtime SDK.

You can access the AMD feature with the Compatibility API which is designed to make migrating from other providers easy while giving you access to our next generation APIs and endpoints. Using the create a call endpoint, you can use the Machine Detection parameter to enable AMD or, by using the value, you can even listen for the end of a machine message.

This guide utilizes the Answering Machine Detection feature to determine whether a human or voicemail machine has answered the call. This allows your program to determine whether to dial a number to connect someone to the human or leave a message for the voicemail box.

This application demonstrates how easy it is to place a call, accepting both DTMF and text input, and using SignalWire's advanced TTS capabilities to speak dates and times in the correct way. If the user changes their appointment to one of the slots we offer, we will also send them a reminder SMS.

A call whisper allows the callee (receiver of the call) to receive an audio message before the call is connected and allows the callee to accept or reject the incoming call. The audio message can contain information such as the source or purpose of the call.

This guide will show you how to cancel a stream using the SignalWire Rest API.

This guide will use `` and websockets to receive base64 audio, which can be written to an audio file for storage, playback, or further manipulation such as transcription services. This guide will focus on taking inbound and outbound audio tracks from a call and saving them to a Wave file.

This application will prompt the caller for a phone number via speech input and connect to the phone number recognized using ASR providing an additional level of accessibility to your users.

This code will show you how you can use a JSON-defined menu in order to easily create an IVR Phone System with Python & Flask. We will be using the SignalWire Team as an example, but you can easily change the verbiage to fit your company's needs instead. Once you have modified this script to fit your company and point to the correct agents/departments, you only need to expose the script to the public and attach it as a webhook for handling inbound calls to one of your SignalWire DIDs.

Using time intervals to perform a specific action depending on business hours.

Have you ever wanted to gather Voice API usage data, but struggled to visualize your data while sorting through your call logs? Let's dive into a few statistical methods to help analyze the activity within your SignalWire Voice Space.

This guide will show how you can easily take a voicemail message from incoming callers, transcribe the recording, and email the transcription. We will use the SignalWire Python SDK to record a voicemail and transcribe it along with the MailGun API to send an email.

This guide demonstrates how to use SignalWire APIs to create a completely functional call center where the features are controlled by the JSON configuration file making it exceedingly easy to enable/disable features in minutes! The dynamic setup of the JSON menus adds a greater level of customizability to your IVR and makes modifying the structure on the fly a breeze.

In Gathering User Input we showed how to set up an cXML application to collect input from users. The approach we showed had a limitation: we couldn't take choices based on the user's input.

This snippet will show how you can utilize the List Calls Endpoint to pull detailed call reports within a specific date range! The results will include some helpful summary stats about total calls, inbound vs outbound, total cost, and total duration. We will also export further detail on a per-call record basis to a CSV for record-keeping or extra review.

In Making and Receiving Phone Calls we learned how to use Compatibility XML bins to control outbound and inbound calls. In particular, we showed how to play a simple audio message.

This advanced example builds an application that implements a simple phone tree IVR with a few interesting features, including:

This application will allow customers to check balance as well as obtain the due date for credit card payments via both voice and SMS.

"This call may be recorded for quality assurance and training purposes". We've all heard it a million times! Call recording is one of the most common use cases in call centers, customer service lines, and even in your average small business. This guide will show how you can record both inbound and outbound calls with ease in a variety of different ways to suit your needs!

In a past blog, we talked about the importance of having a concise phone menu so that customers don't have to wait through your IVR in order to resolve an issue. But what happens if a lot of customers call at once, making long hold and wait times that may make your customers aggravated as they stay on the line for extended periods of time? Have your customers keep their sanity while avoiding long hold times by offering a callback option. Using the SignalWire Python SDK, customers can call and request a call back by pressing a digit, or they can text message the number and request a call back when the next agent is available.

This guide implements a call screening system based on the concept of a blocklist containing offending numbers. When a call comes in, the From number will be cross-checked with the block list to see if it is one of the blocked numbers. If so, the call will hang up. If the number is not in the block list, the call flow moves on to the next segment.

A telephone survey can be used to obtain useful information from users or customers, like a medical questionnaire for example. With SignalWire's NodeJS SDK, an application can be created to send an outbound call survey to English or Spanish speakers.

This guide will show you how to easily identify the sentiment and emotion of a call. This is good for POST analysis or with some simple modification, it can be used in real-time to route the caller actively.

Having voicemail available is an important part of any phone system, and calls to SIP endpoints are no exception. There are a couple different ways to handle voicemails for SIP. You could use a Domain Application set up with two cXML application webhooks. The first would dial your SIP endpoint with a timeout parameter. The second would record a voicemail if the call was not answered within the timeout time.

Set up Voicemail for your SIP endpoint.

You can learn more about voice status callbacks, all of the possible parameters you can use, and how to set them up in our status callback mega guide!

In this snippet, we will show you how to use SignalWire's List Calls API to gain valuable insight into your usage of voice on SignalWire's platform. After running this script, you gain both itemized and bird's eye views on all of the details of your voice usage, including:

This code will show you how you can use the very simple google sheets API instead of a database to store the results of a phone survey designed in Python. In this demo, we will show how it could be used to create a COVID19 health survey that will gather and append the call SID, from number, to number, and the answers to each question to our google sheet. Before we review and explain the code needed for this task, we first need to set up our Google Sheet as well as the Google Cloud Platform. Don't worry, it's easier than you think!

SignalWire allows you to easily integrate with your existing providers via SIP as a Bring Your Own Carrier (BYOC). thinQ is a voice API platform that can be integrated with SignalWire as BYOC. Follow the steps below to have inbound calls from thinQ routed to SignalWire as well as outbound calls from SignalWire routed to thinQ.

By adding 2FA to your application, you can provide your users effective protection against many security threats that target user passwords and accounts. It will generate a One-Time Password to their phone number via voice call. Application developers can enable two-factor authentication for their users with ease and without making any changes to the already existing application logic or database structure! This guide uses the Python SignalWire SDK to show an example of how that can be done!

When managing conference calls using SignalWire, it's sometimes necessary to pause and resume call recordings dynamically. This guide offers an in-depth look into how to update active conference recordings utilizing the SignalWire REST Client Python SDK as well as SignalWire's REST endpoints.

Another very common use case with our voice APIs is creating/dialing conferences! This guide will show how you can dial into simple conferences using XML bins or create a more complex conferencing application using our SignalWire SDKs.

Learn how to send and receive SMS messages with the SignalWire Realtime SDK.

Learn how to forward texts to an email address using the SignalWire Realtime SDK.

Learn how to send SMS from the browser using the SignalWire Realtime SDK.

This guide will show you how to create a bi-directional mask of participants' phone numbers for voice and text messages using SignalWire and Python.

In Receiving your first SMS we learned how to use Compatibility XML bins to handle incoming messages. In particular, we showed how to reply with a static message to any incoming SMS.

With this code snippet you can get the total cost of messaging in a specific date range.

Multi-factor authentication (MFA) is used to authenticate users of an application through the use of a secret token that is sent to them over SMS text or a voice call. It is commonly used for logging in to secure systems, but it is also gaining popularity as an one-time password (OTP) mechanism to authorize transactions or to sign documents and contracts.

This guide will show you two ways to approach redacting sensitive information from your outbound messages using the SignalWire API and Python or Node.js.

This guide will use Flask to create a simple web application that can send sms through the browser.

import Frame from "@site/src/components/Extras/Frame/Frame";

This script utilizes SMS status callbacks to show a simple delivery status tracker that could begin running before a message campaign goes out and end when a message campaign ends. This tracker will log every message status event to the console and keep a record of any message failures. When the message campaign is complete and the app is ended, all the failures along with relevant information will be downloaded to CSV for later investigation.

This guide will show you how to create a phrase-based subscription service using SignalWire and Python. The application will demonstrate how you can easily create and maintain multiple campaigns as well as their associated subscribers. The list administrator can broadcast to specific campaigns and is notified of new subscribers and removal requests via email. If you reply with stop or unsubscribe, the number will be placed on a black list.

When building an application with SignalWire services, you are very likely to use webhooks to exchange information with SignalWire. A webhook is an HTTP(S) request sent to your web application when a key event has occurred, such as an inbound call, inbound message, or a status change. This allows SignalWire to query your web application in order for instructions on what to do next. For example, you might use a webhook to handle an inbound call by reading the instructions in your webhook to play an IVR, route the customer to the right department, and connect them with an agent. You could also use a webhook as a status callback where each status change of a call or message is sent to your web application which might store some instructions for handling emergent errors.

Learn how to use the SignalWire Chat API to send SMS and make calls.

Learn how to build a chat application with React.

Quickly implement a full-fledged chat into your web application.

In this guide we will explore a simple chat application built using the SignalWire SDK.

Using the SignalWire Video SDK, you can get information on who of the participants is currently speaking. You can use this information, for example, to highlight the participant in your user interface.

In case of large events, scalability is key. If you need to broadcast your live video event to a large audience, we have a couple of solutions.

Learn how to make a Clubhouse clone using the SignalWire Video API.

If you are using SignalWire to conduct your video conferences, it is quite simple to record the video feed and access them later at your convenience. Depending on how you are using SignalWire Video, there are several ways you might go about controlling your recordings.

SignalWire Video API allows you to host real-time video calls and conferences on your website. In this guide, we'll learn to add screen sharing ability in your video call interface.

Add high-quality, high-performance video to your application or website

In this guide, we will show how to stream a video room to external services like YouTube. We are going to use the Streaming APIs, which represent the simplest way to set up a stream, and the Browser SDK.

SignalWire Video API allows you to host real-time video calls and conferences on your website. In this guide, we'll learn to allow users to change the camera and microphone that's being used in the call.

SignalWire Video Conferences offer a wide set of layouts to display the members in a room. To learn how to use layouts, check out the guides for Setting the Video Call Layout and Using Layout Positions.

SignalWire renders the video of your room in the cloud. This means that everyone sees the same content, and you could have a virtually unlimited number of connected users: the network link between your computer and SignalWire's server will only need to carry a single video stream, no matter what.

Learn how to secure your callback for a inbound fax

This short and simple guide will show how you can use the SignalWire Python SDK and the MailGun API in order to forward your incoming SignalWire faxes to email. You can easily bridge this older technology by allowing faxes to be delivered to your inbox with only a few lines of code.

Example application that sends Faxes, and retries if it fails

After you have acquired a number, or in case you have one already, open its settings by clicking on "Edit Settings". Scroll down until you reach "Voice and Fax Settings", as shown in the next figure, and configure it to:

cXML applications create a URL endpoint that responds with a set of instructions that can be executed to handle calls, SMS, or fax.

List all of the numbers in your SignalWire Project and export them to CSV

This code snippet will filter all numbers by a certain area code or sequence and then return all the numbers that match. Once you review the numbers that it prints out, you can uncomment the delete line and run it again to release the numbers all at once.

The Python script example below will delete numbers from your SignalWire Space based on a CSV file of the intended numbers to be deleted.

An introduction to using webhooks to receive information and events about calls and messages.