myCRMSIM HighLevel Extension: Android & Mac Calling Setup and iMessage Voice Notes
myCRMSIM allows you to make calls directly from HighLevel using a connected Android phone or Mac. Once the calling line is enabled and the browser extension is installed and authorized, a Call button appears next to the contact’s phone number.
What Does the Browser Extension Support?
The browser extension available under Resources supports the following features in HighLevel:
- Calling: Make calls through a connected Android phone/SIM or Mac device.
- iMessage/WhatsApp Voice Notes: Record and send voice notes from the HighLevel message box in conversations.
Before You Start
If your device is not connected to myCRMSIM yet, complete the relevant setup guide first:
- Setting Up Your Android Device with myCRMSIM SMS Gateway — Install the Android app, connect your phone to myCRMSIM, and assign its SIM to the appropriate subaccount.
- How to Connect an iMessage Device from HighLevel — Connect and authenticate your Mac, then assign it to the appropriate HighLevel subaccount.
- A myCRMSIM account connected to HighLevel.
- An Android phone or Mac connected to the correct subaccount.
- An active internet connection on your device.
- Access to the myCRMSIM dashboard and your HighLevel account.
- Google Chrome or another Chromium-based browser that supports unpacked extensions.
- An active calling plan: Purchase the required myCRMSIM calling plan before setting up calling. Make sure you have the appropriate plan for your device (Android or Mac/iMessage).
Step 1: Enable Calling for Your Device
Before making calls through HighLevel, enable calling for each device you want to use.
- Log in to your myCRMSIM dashboard.
- Navigate to Plans → Calling.
- Locate the relevant calling section:
- Android: For calls made through an Android phone's SIM.
- iMessage: For FaceTime audio calls through a connected Mac.
- Find the device line associated with the correct subaccount.
- Turn on the toggle next to the relevant device line.
- If prompted, confirm that conference calling is enabled where required, then select Conference calling is on, turn calling on.
- Verify that the status displays Calling enabled for this line.
- Check that the Calling on counter has increased.
Step 2: Download and Extract the Browser Extension
- Log in to your myCRMSIM dashboard.
- Open Resources.
- Download the calling browser extension.
- Locate the downloaded ZIP file on your computer.
- Right-click the ZIP file and select Extract, Extract All, or Unzip, depending on your operating system.
- Save the extracted folder in an easily accessible location.

Step 3: Install the Extension in Chrome
- Open Google Chrome.
- Enter chrome://extensions in the address bar.
- Enable Developer mode in the top-right corner.
- Click Load unpacked.
- Select the extracted extension folder.
- Click Select Folder or Open, depending on your operating system.
- Confirm that the extension appears in your installed extensions.
- Optionally, pin the extension using the Extensions icon in the Chrome toolbar.

Step 4: Sign In or Authorize the Extension
The extension may automatically detect your active account if you are already logged in. Otherwise, you may need to sign in and authorize it.
- Click the calling extension icon in the Chrome toolbar.
- Select Log in, Authorize, or the available sign-in option if prompted.
- Enter your credentials and complete any required security verification.
- Approve the authorization request.
- Make sure you authorize the correct agency and account containing your calling device.

Step 5: Open HighLevel and Locate the Call Button
- Open the correct HighLevel agency or subaccount.
- Navigate to Contacts.
- Open a contact with a valid phone number.
- Refresh the page if necessary.
- Verify that the Call button appears next to the contact’s phone number.

Step 6: Make a Call Through Android
- Open the contact in HighLevel.
- Click Call next to the contact’s phone number.
- If prompted, select the Android device or SIM line.
- Confirm the call if required.
Step 7: Make a Call Through Mac
- Open the contact in HighLevel.
- Click Call next to the contact’s phone number.
- If prompted, select the Mac device.
- Confirm the call if required.

Using Android and Mac Together
If both devices are connected to the same subaccount:
- Enable the Android and Mac calling lines separately under Plans → Calling.
- Verify that both lines display Calling enabled for this line.
- Click Call in HighLevel and select the device you want to use when prompted.
iMessage/WhatsApp Voice Notes
The browser extension also supports recording and sending voice notes from the HighLevel message box conversations.
This feature is separate from Android calling and uses the same browser extension. Follow the relevant iMessage/WhatsApp voice-note instructions to learn how to record and send a voice note.
Note: Add the verified step-by-step voice-note instructions or link to the dedicated guide here before publishing this section.
This feature is separate from Android calling and uses the same browser extension. Follow the relevant iMessage/WhatsApp voice-note instructions to learn how to record and send a voice note.
Note: Add the verified step-by-step voice-note instructions or link to the dedicated guide here before publishing this section.
Troubleshooting
The Call Button Is Not Visible
- Confirm that the browser extension is installed and enabled.
- Verify that the extension is authorized for the correct account.
- Make sure the contact has a valid phone number.
- Confirm that the device is connected to the correct subaccount.
- Check Plans → Calling to ensure the required calling line is enabled and your calling plan is active.
- Refresh HighLevel.
The Extension Asks Me to Log In Again
- Open the extension and sign in or authorize it again.
- Select the correct agency and account.
- Return to HighLevel and refresh the page.
The Device Does Not Appear in the Selection List
- Confirm that the device is online.
- Check that it is connected to the correct subaccount.
- Verify its status in myCRMSIM.
- Ensure that calling is enabled for the device line.
- Reopen the extension and refresh HighLevel.
Android Calling Does Not Start
- Confirm that the Android phone has an active SIM and an internet connection.
- Verify that calling is enabled for the selected SIM.
- Confirm that your calling plan is active.
- Ensure that conference or three-way calling is enabled if required.
- Check that the Android calling app meets the requirements specified in your myCRMSIM calling settings.
Mac Calling Does Not Start
- Confirm that the Mac is online and connected to the correct subaccount.
- Verify that the Mac/iMessage calling line is enabled.
- Confirm that your calling plan is active.
- Ensure that the browser extension is authorized.
- Refresh HighLevel and try again.
Summary
- Connect your Android or Mac to the correct subaccount using the relevant setup guide.
- Purchase the required calling plan and enable the appropriate device line under Plans → Calling.
- Download and extract the browser extension from Resources.
- Install the extension in Chrome.
- Sign in or authorize the extension if prompted.
- Open a contact in HighLevel and click Call.
- Select Android or Mac if prompted.
- For iMessage/WhatsApp voice notes, use the same extension and follow the dedicated voice-note instructions.
