There are many reasons you may want to keep the phone numbers you already have. Switching to a new phone system should not have to mean getting a new number too. With Aircall, there are different ways to use your existing Twilio numbers.

This article explains your options and how to link your Twilio numbers to Aircall using SIP trunking.

Options for using Twilio numbers with Aircall

There are two main ways to use Twilio numbers with Aircall.

Option 1: Port your Twilio number to Aircall

You can completely port your Twilio number to Aircall.

This option:

For information on number porting, please see Aircall porting guide.

Important: With this option, you will not be able to send or receive SMS messages through Twilio, since this is not supported on Aircall's platform at this time.

Option 2: Link your Twilio number to Aircall (SIP trunking)

You can also link your Twilio number to Aircall using SIP trunking.

This is a great option if you want to keep your SMS services through Twilio while using the Aircall platform for phone calls.

Before linking your Twilio number to Aircall, keep the following in mind:

Important: - Aircall cannot assist with your Twilio account, including invoicing, configuration, and compliance.
- Aircall will not be able to help with issues that come up from using your Twilio phone number. For phone quality issues or support, you will need to contact Twilio.
- Twilio numbers are charged differently than Aircall numbers. Your toll-free inbound calls will be charged on both Aircall and Twilio. Geographic (non-toll-free) inbound calls are free on Aircall but will be charged on Twilio.
- You cannot use Aircall SMS or third-party SMS with Aircall directly using your Twilio numbers.

You can see below the updated instructions to link your Twilio number to Aircall using SIP trunking.

How to link your Twilio number to Aircall (SIP trunking)

Step 1: Purchase a number from Twilio

If you do not yet have a Twilio number:

  1. Go to the Twilio website and create your own Twilio account.
  2. Purchase a number from Twilio.

  3. Once you have your number, write it down in International Format (E164 Format), for example:

    +12345678900

    Make sure:

    • There are no spaces, dashes, or points.
    • The number starts with the “+” sign as the first character.

Step 2: Create a new SIP trunk

  1. Log in to your Twilio account.
  2. Go to: https://www.twilio.com/console/sip-trunking/trunks
    • Navigation path: Home > Elastic SIP Trunking > Manage > Trunks
  3. Click Create new SIP Trunk, located:
    • In the upper right-hand corner of the page, or
    • In the center of the page if this is your first SIP trunk.
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  1. Type Aircall Trunk as the Friendly Name of your new trunk.
  2. Click Create.

From here you can turn on the Call Recording function. Even if call recording is not active on Twilio, you can activate it on Aircall.

Deactivate Secure Trunking.

Step 3: Configure your new SIP trunk

  1. After creating the SIP trunk, click the Origination tab to configure it.
  1. Click Add New Origination URI.
  2. In the SIP URI section, add the correct value based on the region of your number:
    • For Asia and Oceania:
      sip:aircall-custom.sip.sg1.twilio.com
    • For North and South America:
      sip:aircall-custom.sip.us1.twilio.com
    • For Europe:
      sip:aircall-custom.sip.ie1.twilio.com

Step 4: Add your Twilio number to this trunk

  1. Go to the Numbers tab of your SIP trunk.
  2. Click Add a Number.
  3. Use filters if needed to find and select your Twilio number.

Your Twilio number is now attached to this SIP trunk.

Step 5: Check Twilio's pricing

Twilio charges:

  • For each number you own
  • For each minute of incoming calls

Their pricing page explains how much it costs for local, mobile, and national numbers. Make sure you have the needed credits in your Twilio account.

Step 6: Send Aircall your phone number

Once you are fully set up on Twilio, you are ready to link your number to Aircall.

All you need to do is contact Aircall Customer Support to submit a request for your SIP trunked number to be added to the Aircall Dashboard. Aircall will handle the rest from there.

Important: If you have more than one Twilio number to link to Aircall, repeat the setup steps above for each number. You can include multiple numbers in a single ticket to the Aircall Support Team.