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README.md
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app.rb
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icon-voice.svg

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Voice Redirect Loop

Voice Quick Start Guide

Table of Contents

Description

This sample app indefinitely redirects an inbound call to itself until an interruption is sent to end the call.

In the Bandwidth Dashboard, set the Application's Call initiated callback URL to <BASE_CALLBACK_URL>/callbacks/inboundCall. This can also be done via the Dashboard API by setting CallInitiatedCallbackUrl. Once configured, inbound calls to your BW_NUMBER will be redirected every 30 seconds and ring indefinitely. The callId of the inbound call is saved to an active_calls array, which can be accessed via a GET request to the /calls endpoint provided by the app.

To stop a call, make a DELETE request to the /calls/{callId} endpoint, replacing {callId} with that of the call you wish to end. This endpoint will redirect the call to the /callbacks/callEnded endpoint, which breaks the redirect loop and speaks a sentence to let you know the call has been ended before hanging up.

Pre-Requisites

In order to use the Bandwidth API users need to set up the appropriate application at the Bandwidth Dashboard and create API tokens.

To create an application log into the Bandwidth Dashboard and navigate to the Applications tab. Fill out the New Application form selecting the service (Messaging or Voice) that the application will be used for. All Bandwidth services require publicly accessible Callback URLs, for more information on how to set one up see Callback URLs.

For more information about API credentials see our Account Credentials page.

Running the Application

To install the required packages for this app, run the command:

bundle install

Use the following command to run the application:

ruby app.rb

Environmental Variables

The sample app uses the below environmental variables.

BW_ACCOUNT_ID # Your Bandwidth Account Id
BW_USERNAME # Your Bandwidth API username
BW_PASSWORD # Your Bandwidth API password
BW_VOICE_APPLICATION_ID # Your Voice Application Id created in the dashboard
LOCAL_PORT # The port number you wish to run the sample on
BASE_CALLBACK_URL # The public base url

Callback URLs

For a detailed introduction, check out our Bandwidth Voice Callbacks page.

Below are the callback paths:

  • /callbacks/inboundCall
  • /callbacks/callEnded

Ngrok

A simple way to set up a local callback URL for testing is to use the free tool ngrok.
After you have downloaded and installed ngrok run the following command to open a public tunnel to your port ($LOCAL_PORT)

ngrok http $LOCAL_PORT

You can view your public URL at http://127.0.0.1:4040 after ngrok is running. You can also view the status of the tunnel and requests/responses here.

About

Redirect a voice call using our Ruby SDK

Topics

servervoice

Resources

Readme
MIT license
Activity
Custom properties

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Watchers

2 watching

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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icon-voice.svg
Repository files navigation
Voice Redirect Loop
Voice Quick Start Guide
Table of Contents
Description
This sample app indefinitely redirects an inbound call to itself until an interruption is sent to end the call.
In the Bandwidth Dashboard, set the Application's Call initiated callback URL to <BASE_CALLBACK_URL>/callbacks/inboundCall. This can also be done via the Dashboard API by setting CallInitiatedCallbackUrl. Once configured, inbound calls to your BW_NUMBER will be redirected every 30 seconds and ring indefinitely. The callId of the inbound call is saved to an active_calls array, which can be accessed via a GET request to the /calls endpoint provided by the app.
To stop a call, make a DELETE request to the /calls/{callId} endpoint, replacing {callId} with that of the call you wish to end. This endpoint will redirect the call to the /callbacks/callEnded endpoint, which breaks the redirect loop and speaks a sentence to let you know the call has been ended before hanging up.
Pre-Requisites
In order to use the Bandwidth API users need to set up the appropriate application at the Bandwidth Dashboard and create API tokens.
To create an application log into the Bandwidth Dashboard and navigate to the Applications tab. Fill out the New Application form selecting the service (Messaging or Voice) that the application will be used for. All Bandwidth services require publicly accessible Callback URLs, for more information on how to set one up see Callback URLs.
For more information about API credentials see our Account Credentials page.
Running the Application
To install the required packages for this app, run the command:
bundle install
Use the following command to run the application:
ruby app.rb
Environmental Variables
The sample app uses the below environmental variables.
BW_ACCOUNT_ID # Your Bandwidth Account Id
BW_USERNAME # Your Bandwidth API username
BW_PASSWORD # Your Bandwidth API password
BW_VOICE_APPLICATION_ID # Your Voice Application Id created in the dashboard
LOCAL_PORT # The port number you wish to run the sample on
BASE_CALLBACK_URL # The public base url
Callback URLs
For a detailed introduction, check out our Bandwidth Voice Callbacks page.
Below are the callback paths:
  • /callbacks/inboundCall
  • /callbacks/callEnded
Ngrok
A simple way to set up a local callback URL for testing is to use the free tool ngrok.

After you have downloaded and installed ngrok run the following command to open a public tunnel to your port ($LOCAL_PORT)
ngrok http $LOCAL_PORT
You can view your public URL at http://127.0.0.1:4040 after ngrok is running. You can also view the status of the tunnel and requests/responses here.
About
Redirect a voice call using our Ruby SDK
Topics
servervoice
Resources
Readme
MIT license
Activity
Custom properties
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Watchers
2 watching
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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icon-voice.svg
icon-voice.svg
Repository files navigation
Voice Redirect Loop
Voice Quick Start Guide
Table of Contents
Description
This sample app indefinitely redirects an inbound call to itself until an interruption is sent to end the call.
In the Bandwidth Dashboard, set the Application's Call initiated callback URL to <BASE_CALLBACK_URL>/callbacks/inboundCall. This can also be done via the Dashboard API by setting CallInitiatedCallbackUrl. Once configured, inbound calls to your BW_NUMBER will be redirected every 30 seconds and ring indefinitely. The callId of the inbound call is saved to an active_calls array, which can be accessed via a GET request to the /calls endpoint provided by the app.
To stop a call, make a DELETE request to the /calls/{callId} endpoint, replacing {callId} with that of the call you wish to end. This endpoint will redirect the call to the /callbacks/callEnded endpoint, which breaks the redirect loop and speaks a sentence to let you know the call has been ended before hanging up.
Pre-Requisites
In order to use the Bandwidth API users need to set up the appropriate application at the Bandwidth Dashboard and create API tokens.
To create an application log into the Bandwidth Dashboard and navigate to the Applications tab. Fill out the New Application form selecting the service (Messaging or Voice) that the application will be used for. All Bandwidth services require publicly accessible Callback URLs, for more information on how to set one up see Callback URLs.
For more information about API credentials see our Account Credentials page.
Running the Application
To install the required packages for this app, run the command:
bundle install
Use the following command to run the application:
ruby app.rb
Environmental Variables
The sample app uses the below environmental variables.
BW_ACCOUNT_ID # Your Bandwidth Account Id
BW_USERNAME # Your Bandwidth API username
BW_PASSWORD # Your Bandwidth API password
BW_VOICE_APPLICATION_ID # Your Voice Application Id created in the dashboard
LOCAL_PORT # The port number you wish to run the sample on
BASE_CALLBACK_URL # The public base url
Callback URLs
For a detailed introduction, check out our Bandwidth Voice Callbacks page.
Below are the callback paths:
  • /callbacks/inboundCall
  • /callbacks/callEnded
Ngrok
A simple way to set up a local callback URL for testing is to use the free tool ngrok.

After you have downloaded and installed ngrok run the following command to open a public tunnel to your port ($LOCAL_PORT)
ngrok http $LOCAL_PORT
You can view your public URL at http://127.0.0.1:4040 after ngrok is running. You can also view the status of the tunnel and requests/responses here.
About
Redirect a voice call using our Ruby SDK
Topics
servervoice
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
2 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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icon-voice.svg
icon-voice.svg
Repository files navigation
Voice Redirect Loop
Voice Quick Start Guide
Table of Contents
Description
This sample app indefinitely redirects an inbound call to itself until an interruption is sent to end the call.
In the Bandwidth Dashboard, set the Application's Call initiated callback URL to <BASE_CALLBACK_URL>/callbacks/inboundCall. This can also be done via the Dashboard API by setting CallInitiatedCallbackUrl. Once configured, inbound calls to your BW_NUMBER will be redirected every 30 seconds and ring indefinitely. The callId of the inbound call is saved to an active_calls array, which can be accessed via a GET request to the /calls endpoint provided by the app.
To stop a call, make a DELETE request to the /calls/{callId} endpoint, replacing {callId} with that of the call you wish to end. This endpoint will redirect the call to the /callbacks/callEnded endpoint, which breaks the redirect loop and speaks a sentence to let you know the call has been ended before hanging up.
Pre-Requisites
In order to use the Bandwidth API users need to set up the appropriate application at the Bandwidth Dashboard and create API tokens.
To create an application log into the Bandwidth Dashboard and navigate to the Applications tab. Fill out the New Application form selecting the service (Messaging or Voice) that the application will be used for. All Bandwidth services require publicly accessible Callback URLs, for more information on how to set one up see Callback URLs.
For more information about API credentials see our Account Credentials page.
Running the Application
To install the required packages for this app, run the command:
bundle install
Use the following command to run the application:
ruby app.rb
Environmental Variables
The sample app uses the below environmental variables.
BW_ACCOUNT_ID # Your Bandwidth Account Id
BW_USERNAME # Your Bandwidth API username
BW_PASSWORD # Your Bandwidth API password
BW_VOICE_APPLICATION_ID # Your Voice Application Id created in the dashboard
LOCAL_PORT # The port number you wish to run the sample on
BASE_CALLBACK_URL # The public base url
Callback URLs
For a detailed introduction, check out our Bandwidth Voice Callbacks page.
Below are the callback paths:
  • /callbacks/inboundCall
  • /callbacks/callEnded
Ngrok
A simple way to set up a local callback URL for testing is to use the free tool ngrok.

After you have downloaded and installed ngrok run the following command to open a public tunnel to your port ($LOCAL_PORT)
ngrok http $LOCAL_PORT
You can view your public URL at http://127.0.0.1:4040 after ngrok is running. You can also view the status of the tunnel and requests/responses here.
About
Redirect a voice call using our Ruby SDK
Topics
servervoice
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
2 watching
Forks
0 forks
Report repository
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Used by
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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README.md
README.md
app.rb
app.rb
icon-voice.svg
icon-voice.svg
Repository files navigation
Voice Redirect Loop
Voice Quick Start Guide
Table of Contents
Description
This sample app indefinitely redirects an inbound call to itself until an interruption is sent to end the call.
In the Bandwidth Dashboard, set the Application's Call initiated callback URL to <BASE_CALLBACK_URL>/callbacks/inboundCall. This can also be done via the Dashboard API by setting CallInitiatedCallbackUrl. Once configured, inbound calls to your BW_NUMBER will be redirected every 30 seconds and ring indefinitely. The callId of the inbound call is saved to an active_calls array, which can be accessed via a GET request to the /calls endpoint provided by the app.
To stop a call, make a DELETE request to the /calls/{callId} endpoint, replacing {callId} with that of the call you wish to end. This endpoint will redirect the call to the /callbacks/callEnded endpoint, which breaks the redirect loop and speaks a sentence to let you know the call has been ended before hanging up.
Pre-Requisites
In order to use the Bandwidth API users need to set up the appropriate application at the Bandwidth Dashboard and create API tokens.
To create an application log into the Bandwidth Dashboard and navigate to the Applications tab. Fill out the New Application form selecting the service (Messaging or Voice) that the application will be used for. All Bandwidth services require publicly accessible Callback URLs, for more information on how to set one up see Callback URLs.
For more information about API credentials see our Account Credentials page.
Running the Application
To install the required packages for this app, run the command:
bundle install
Use the following command to run the application:
ruby app.rb
Environmental Variables
The sample app uses the below environmental variables.
BW_ACCOUNT_ID # Your Bandwidth Account Id
BW_USERNAME # Your Bandwidth API username
BW_PASSWORD # Your Bandwidth API password
BW_VOICE_APPLICATION_ID # Your Voice Application Id created in the dashboard
LOCAL_PORT # The port number you wish to run the sample on
BASE_CALLBACK_URL # The public base url
Callback URLs
For a detailed introduction, check out our Bandwidth Voice Callbacks page.
Below are the callback paths:
  • /callbacks/inboundCall
  • /callbacks/callEnded
Ngrok
A simple way to set up a local callback URL for testing is to use the free tool ngrok.

After you have downloaded and installed ngrok run the following command to open a public tunnel to your port ($LOCAL_PORT)
ngrok http $LOCAL_PORT
You can view your public URL at http://127.0.0.1:4040 after ngrok is running. You can also view the status of the tunnel and requests/responses here.
About
Redirect a voice call using our Ruby SDK
Topics
servervoice
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
2 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Latest commit
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15 Commits
Folders and files
NameName
Last commit message
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.github
.github
.gitignore
.gitignore
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Gemfile
LICENSE
LICENSE
README.md
README.md
app.rb
app.rb
icon-voice.svg
icon-voice.svg
Repository files navigation
Voice Redirect Loop
Voice Quick Start Guide
Table of Contents
Description
This sample app indefinitely redirects an inbound call to itself until an interruption is sent to end the call.
In the Bandwidth Dashboard, set the Application's Call initiated callback URL to <BASE_CALLBACK_URL>/callbacks/inboundCall. This can also be done via the Dashboard API by setting CallInitiatedCallbackUrl. Once configured, inbound calls to your BW_NUMBER will be redirected every 30 seconds and ring indefinitely. The callId of the inbound call is saved to an active_calls array, which can be accessed via a GET request to the /calls endpoint provided by the app.
To stop a call, make a DELETE request to the /calls/{callId} endpoint, replacing {callId} with that of the call you wish to end. This endpoint will redirect the call to the /callbacks/callEnded endpoint, which breaks the redirect loop and speaks a sentence to let you know the call has been ended before hanging up.
Pre-Requisites
In order to use the Bandwidth API users need to set up the appropriate application at the Bandwidth Dashboard and create API tokens.
To create an application log into the Bandwidth Dashboard and navigate to the Applications tab. Fill out the New Application form selecting the service (Messaging or Voice) that the application will be used for. All Bandwidth services require publicly accessible Callback URLs, for more information on how to set one up see Callback URLs.
For more information about API credentials see our Account Credentials page.
Running the Application
To install the required packages for this app, run the command:
bundle install
Use the following command to run the application:
ruby app.rb
Environmental Variables
The sample app uses the below environmental variables.
BW_ACCOUNT_ID # Your Bandwidth Account Id
BW_USERNAME # Your Bandwidth API username
BW_PASSWORD # Your Bandwidth API password
BW_VOICE_APPLICATION_ID # Your Voice Application Id created in the dashboard
LOCAL_PORT # The port number you wish to run the sample on
BASE_CALLBACK_URL # The public base url
Callback URLs
For a detailed introduction, check out our Bandwidth Voice Callbacks page.
Below are the callback paths:
  • /callbacks/inboundCall
  • /callbacks/callEnded
Ngrok
A simple way to set up a local callback URL for testing is to use the free tool ngrok.

After you have downloaded and installed ngrok run the following command to open a public tunnel to your port ($LOCAL_PORT)
ngrok http $LOCAL_PORT
You can view your public URL at http://127.0.0.1:4040 after ngrok is running. You can also view the status of the tunnel and requests/responses here.
About
Redirect a voice call using our Ruby SDK
Topics
servervoice
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
2 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Latest commit
History
15 Commits
Folders and files
NameName
Last commit message
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.github
.github
.gitignore
.gitignore
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Gemfile
LICENSE
LICENSE
README.md
README.md
app.rb
app.rb
icon-voice.svg
icon-voice.svg
Repository files navigation
Voice Redirect Loop
Voice Quick Start Guide
Table of Contents
Description
This sample app indefinitely redirects an inbound call to itself until an interruption is sent to end the call.
In the Bandwidth Dashboard, set the Application's Call initiated callback URL to <BASE_CALLBACK_URL>/callbacks/inboundCall. This can also be done via the Dashboard API by setting CallInitiatedCallbackUrl. Once configured, inbound calls to your BW_NUMBER will be redirected every 30 seconds and ring indefinitely. The callId of the inbound call is saved to an active_calls array, which can be accessed via a GET request to the /calls endpoint provided by the app.
To stop a call, make a DELETE request to the /calls/{callId} endpoint, replacing {callId} with that of the call you wish to end. This endpoint will redirect the call to the /callbacks/callEnded endpoint, which breaks the redirect loop and speaks a sentence to let you know the call has been ended before hanging up.
Pre-Requisites
In order to use the Bandwidth API users need to set up the appropriate application at the Bandwidth Dashboard and create API tokens.
To create an application log into the Bandwidth Dashboard and navigate to the Applications tab. Fill out the New Application form selecting the service (Messaging or Voice) that the application will be used for. All Bandwidth services require publicly accessible Callback URLs, for more information on how to set one up see Callback URLs.
For more information about API credentials see our Account Credentials page.
Running the Application
To install the required packages for this app, run the command:
bundle install
Use the following command to run the application:
ruby app.rb
Environmental Variables
The sample app uses the below environmental variables.
BW_ACCOUNT_ID # Your Bandwidth Account Id
BW_USERNAME # Your Bandwidth API username
BW_PASSWORD # Your Bandwidth API password
BW_VOICE_APPLICATION_ID # Your Voice Application Id created in the dashboard
LOCAL_PORT # The port number you wish to run the sample on
BASE_CALLBACK_URL # The public base url
Callback URLs
For a detailed introduction, check out our Bandwidth Voice Callbacks page.
Below are the callback paths:
  • /callbacks/inboundCall
  • /callbacks/callEnded
Ngrok
A simple way to set up a local callback URL for testing is to use the free tool ngrok.

After you have downloaded and installed ngrok run the following command to open a public tunnel to your port ($LOCAL_PORT)
ngrok http $LOCAL_PORT
You can view your public URL at http://127.0.0.1:4040 after ngrok is running. You can also view the status of the tunnel and requests/responses here.
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Redirect a voice call using our Ruby SDK
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Voice Redirect Loop
Voice Quick Start Guide
Table of Contents
Description
This sample app indefinitely redirects an inbound call to itself until an interruption is sent to end the call.
In the Bandwidth Dashboard, set the Application's Call initiated callback URL to <BASE_CALLBACK_URL>/callbacks/inboundCall. This can also be done via the Dashboard API by setting CallInitiatedCallbackUrl. Once configured, inbound calls to your BW_NUMBER will be redirected every 30 seconds and ring indefinitely. The callId of the inbound call is saved to an active_calls array, which can be accessed via a GET request to the /calls endpoint provided by the app.
To stop a call, make a DELETE request to the /calls/{callId} endpoint, replacing {callId} with that of the call you wish to end. This endpoint will redirect the call to the /callbacks/callEnded endpoint, which breaks the redirect loop and speaks a sentence to let you know the call has been ended before hanging up.
Pre-Requisites
In order to use the Bandwidth API users need to set up the appropriate application at the Bandwidth Dashboard and create API tokens.
To create an application log into the Bandwidth Dashboard and navigate to the Applications tab. Fill out the New Application form selecting the service (Messaging or Voice) that the application will be used for. All Bandwidth services require publicly accessible Callback URLs, for more information on how to set one up see Callback URLs.
For more information about API credentials see our Account Credentials page.
Running the Application
To install the required packages for this app, run the command:
bundle install
Use the following command to run the application:
ruby app.rb
Environmental Variables
The sample app uses the below environmental variables.
BW_ACCOUNT_ID # Your Bandwidth Account Id
BW_USERNAME # Your Bandwidth API username
BW_PASSWORD # Your Bandwidth API password
BW_VOICE_APPLICATION_ID # Your Voice Application Id created in the dashboard
LOCAL_PORT # The port number you wish to run the sample on
BASE_CALLBACK_URL # The public base url
Callback URLs
For a detailed introduction, check out our Bandwidth Voice Callbacks page.
Below are the callback paths:
  • /callbacks/inboundCall
  • /callbacks/callEnded
Ngrok
A simple way to set up a local callback URL for testing is to use the free tool ngrok.

After you have downloaded and installed ngrok run the following command to open a public tunnel to your port ($LOCAL_PORT)
ngrok http $LOCAL_PORT
You can view your public URL at http://127.0.0.1:4040 after ngrok is running. You can also view the status of the tunnel and requests/responses here.
About
Redirect a voice call using our Ruby SDK
Topics
servervoice
Resources
Readme
MIT license
Activity
Custom properties
Stars
0 stars
Watchers
2 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages