Calling for Slack

Dial Phone Calls Right from Slack
Browser Calling Teams Can Afford

Tap a number and your browser connects in seconds at low per minute rates. There is nothing to install, and outbound calls need no phone number.

Quick facts

  • Outbound: Dial out with no dedicated number to buy.
  • Inbound: Add a US/Canada digital number ($2.14 to $5/month).
  • No apps: Runs in Chrome, Safari, Edge, Firefox.
How it Works
Slack Click-to-callConnected
💬

Setup Guide for Slack Integration

You will be calling within minutes, and there are no desktop apps to install.

1

Install the App

Bring Intercalling into your Slack workspace through the Slack App Directory or straight from your Intercalling dashboard. Approve the permissions it needs to post messages and add call actions.

2

Connect Your Account

Log in to Intercalling in your browser and link your Slack workspace. Once connected, click-to-call buttons show up beside any phone number in your messages.

3

Start Calling

Type the /call slash command or tap the call icon next to a number. Your browser handles the call and reaches the other party across the public phone network.

What you get

Place calls from any Slack message, channel, or DM. Everything runs in the browser so nobody installs software, and a summary of each call lands back in Slack so the team can keep track.

Click to Call
Tap any phone number in Slack to dial
Slash Command
Run /call +12223334444 to dial from Slack

Inside the Integration

All the tools your team needs to run calls from Slack and watch the results as they happen.

  • Click-to-call straight from any message or channel
  • Slash commands that dial any phone number from Slack
  • Call logs and summaries posted back into Slack automatically
  • Live analytics and session links for reviewing calls afterward
  • Live transcription and suggested replies while you talk
  • Automated handling of inbound or outbound calls on its own

Up in Minutes

Add the app and start dialing within minutes, with nothing for users to install.

Worldwide Reach

Reach real phone numbers anywhere in the world right from Slack.

Private and Secure

Encrypted connections and enterprise controls keep every call private.

Automatic Logs

Post-call summaries land automatically in the channel or DM you pick.

Built for Security and Compliance

Enterprise controls let admins manage access, data retention, and privacy.

Permissions

Scopes granted by admins control what the app can post and where it shows up.

Encryption

WebRTC audio stays encrypted end to end between the browser and Intercalling servers.

Admin Controls

Turn call posting on or off, decide which channels get logs, and define retention rules.

Frequently Asked Questions

How do I add Intercalling to Slack?

Get the Intercalling app from the Slack App Directory, or connect through your Intercalling dashboard, then follow the prompts to approve permissions.

Does anyone have to install software?

No. Calls happen in the browser. All a user needs is a current browser and microphone access to place and take calls.

Are recordings and transcripts available?

Yes. When permissions are on, Intercalling offers recording and transcription, and they are kept according to your retention settings.

Do call logs show up in Slack?

Yes. Once a call ends, Intercalling can drop a summary plus a link to the recording or transcript into a channel or DM so the team can track and follow up.

Bring Intercalling into Slack

Begin making browser calls from Slack today at low per minute rates. There is nothing for users to install. Sign your team up and link Slack in minutes.

Making an international call from a laptop

Call from any browser

No app and no SIM. Place the call from your computer or phone in seconds.

World map of Intercalling calling coverage

Low rates to 190+ destinations

Clear per minute pricing, shown before you dial. Pay as you go, no monthly fee.

Calling from a phone and a laptop

One balance, every device

Start on your laptop, continue on your phone, all at the same low rate.

Calling Alongside Slack: Place Real Phone Calls From Your Browser

In short

Intercalling lets your team place real phone calls straight from a browser tab next to Slack, with no app to install and no SIM card. You can dial any client or lead in Chrome, Safari, Edge or Firefox, pay per minute with no phone number required for outbound, and add a US or Canada number for about $2.14 to $5 per month if you also want to receive calls.

Why teams pair browser calling with Slack

Slack keeps conversations and files in one place, but it does not let you ring an external phone number that is not also a Slack user. When a customer drops a number in a channel, or a lead replies that they would rather talk, you usually have to grab a personal phone or open yet another tool. Intercalling closes that gap by running in a separate browser tab, so you can copy a number out of Slack and dial it in seconds.

Because Intercalling is browser based, every teammate uses the same setup whether they are on a Mac, a Windows laptop or a Chromebook. There is nothing to download, no SIM card, and no shared desk phone, which makes it easy to keep calling consistent across a remote team that already lives in Slack.

How outbound calling works

Outbound calls on Intercalling need no phone number of your own and are pay as you go, billed per minute. You open the browser, dial the international or local number you copied from a Slack thread, and talk. There are no monthly seats required just to make calls, so a member who only dials occasionally costs nothing when idle.

Calls are end to end encrypted, which matters when a channel carries client details, deal terms or anything you would not want intercepted. The combination of per minute pricing and strong encryption makes it well suited to international calling and privacy sensitive business conversations.

Receiving calls and callbacks

If you want customers to call you back on a stable line, add a US or Canada digital number for roughly $2.14 to $5 per month. You can post that number in a Slack channel or your signature, and inbound calls ring through the same browser interface your team already uses for outbound dialing.

Frequently asked questions

Does Intercalling connect directly to the Slack app?+

No. Intercalling is a separate browser based calling service, not a Slack plugin. You use it in its own tab next to Slack and dial numbers you copy from your channels or direct messages. There is no integration to install or configure.

Can I call someone who is not on Slack?+

Yes. Intercalling places real phone calls to any regular phone number, so you can reach clients, leads or vendors who have never used Slack. Outbound calls need no phone number of your own and are billed per minute.

What do I need to start calling?+

Just a browser. Intercalling works in Chrome, Safari, Edge and Firefox with no app download and no SIM card. Open the page, dial the number, and pay only for the minutes you use.

How can my team receive calls back?+

Add a US or Canada digital number for about $2.14 to $5 per month. Inbound calls to that number ring in the same browser interface, and you can share the number in Slack so customers know where to reach you.

Last reviewed June 2026Reviewed by the Intercalling calling teamDialing rules cross checked against ITU international dialing procedures
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