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Banner image with page title:CVAS Guides for Deaf Users

Guide to Using CVAS

You have completed the preview of the download and installation of the CVAS app and the registration process. Use the steps outlined below to preview how to use the service.

The CVAS app is designed to stay active on your phone, which will not affect battery usage. Regardless of whether you are logged in (active) or not on the CVAS app, you will receive calls from the agents. However, if you are logged out, follow the steps below to log in to CVAS app.

Step 1: Login

Click on the CVAS icon on your mobile phone and the following screen will appear:

Image of the first screen of the CVAS displayed with CVAS selected as the Network Provider.

Enter your username and password in the corresponding fields above. Click on Login and the screen below will appear.

Image of the Contacts Screen, the first screen visible when logged in.

At the base of the screen, you will see five buttons, which you will use as follows:

  1. History - Your call history.
  2. Dialpad - Where you dial numbers to make a call.
  3. Contacts - You can access the contacts on your mobile phone here.
  4. Chat - All the CVAS text messages you receive can be found here.
  5. More Options - You will find these options: Settings, Resources and Self-preview.

Step 2: Making a Call

Select Dialpad on the screen in Step 1 and the screen below will appear.

Image of the CVAS dialpad

ENTER the seven digits of the number of the party you wish to call on the dialpad. The number you dial will appear in the Name or Number box at the top of the dialpad.

To speak with a CVAS agent and for the agent, click on the video button, which is on the left hand side of the dialpad.

If your mobile phone’s key board appears, click on return on the bottom right hand side of the key board to remove it.

Step 3: Speaking with your hearing party

After the agent connects to the person you wish to speak with, simply sign to the agent what you would say if you were speaking to the person directly. The agent will then relay to the person what you sign, as if they are you. You will see the screen below on your mobile phone.

Image of the in-call view of the agent and the caller during a video call.

Remember, CVAS is dependent on the quality of the Internet service to you and the agent. This may have a direct impact on the service and can cause interruptions. Should that happen, please call back. If you do not reach the same agent, you can ask to be transferred to the agent you were interacting with.

Step 4: Ending your call

To end your call, click on the black part of the screen next to where you see your picture in the screen above and the screen below will appear.

Image of the call options that appear when screen is tapped during a call.

Click on the red button to end the call.

Step 5: Receiving a call from an agent

When an agent calls, you will see the screen below.

Image of the screen that appears when there is an incoming call.

To answer the call, click on the green video call (accept) button. You will then be in a video call with the agent, who will relay what the hearing person wishes to say to you. Once your call is competed, follow the how to end a call step in 4 above.

Step 6: Receiving video mail from an agent

Should an agent call and is told by your mobile phone that you are not available, they will send you a video mail, which will be sent to your email address. The email will come from with the subject line, "You have a message". Click on the attachment in the email to view your video message.

Note, the email may be sent to your Spam or Junk mail folder. If you find an email from, please drag it to your inbox, where the attachment can be accessed.

Step 7: Logging out of CVAS

To receive calls from hearing parties, do not log out of the app. It will run in the backround and not affect your battery life. However, should you need to log out of the CVAS app, click on More at the bottom of the screen below and a dropdown screen will appear as shown.

Image of the menu options when More is selected.

Select the Settings button in the screen above and a dropdown menu appears as in the screen below.

Configuration screen on Apple device
Configuration screen on Android device
Image of the settings menu where user can log out.
Image of the settings menu where user can log out.

Click on Logout and a dialogue box will appear asking you to select No or Yes. Click on Yes and you will be logged out of the CVAS app and returned to the CVAS Login screen.

You have now completed the Guide to using the CVAS app.

Step 8 – If you forget your password

If you need a new password, do not use the Change Password link that you will see on the Log in page of the CVAS app. Instead, send an email to and ask for a temporary password to be provided to you.

Step 9 – If you want to change your password

Click on Change Password on the CVAS app Log in screen. Note, you must know your old password to use this link.

You’ve read the Guide. Download and install the CVAS app, register in the app and start using the service. Click on the link below to start the process.

Welcome to CVAS - we look forward to being of service to you!

CTU logo in white against a blue background

Caribbean Telecommunications Union

: 4 Mary Street, St. Clair, Port of Spain, Trinidad and Tobago

: +1(868)628-0281, ext. 234


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