Captioned Calls with Confidence
Enjoy advanced call captioning at no cost if you have hearing loss that makes live captions necessary to use the phone.
No-Cost Captioned Phone Service
You can use your phone with confidence when you choose Sorenson’s phone call captioning services. We provide real-time, accurate texts of your conversations, so you never miss—or misunderstand—a word. If your hearing loss makes captions necessary to use the phone effectively, you qualify for captioning services.
We provide you with two great solutions: CaptionCall by Sorenson for your home phone and Olelo by Sorenson mobile app for the most accurate phone call captioning on the go. With either, you can hold calls and be assured of fast, accurate captioning.
CaptionCall and Olelo are part of a federally funded service, so people who need captions to use the phone because of their hearing loss can use them at no cost. The best part is, getting started.
CaptionCall & Olelo Benefits and Features
CaptionCall by Sorenson
With our home phone caption service, you can read your conversations in big, clear text. CaptionCall displays instant, accurate captions on an easy-to-read screen for all your conversations.
From chats with the family to doctor’s appointments, CaptionCall makes you feel confident when speaking on the phone.

Our patented SilkScroll® technology smoothly displays words on an easy-to-read screen.
CaptionCall phones meet TIA-4953 amplification standards, so every word is optimized for you.
Don't worry about forgetting details. You can save transcripts of all your calls for each reference.
Use the large touchscreen to return recent calls, or find a specific entry in your saved contacts.
There's no risk in losing critical information. CaptionCall even captions emergency 911 calls in real time.
Missed a call? Don't worry. We caption voice message details and capture the callback number as well.
Olelo by Sorenson
Whether you’re at work, home, or on the go, Olelo by Sorenson takes the worry out of using the phone.
Olelo is a real-time phone captioning app with advanced automatic speech recognition that instantly and accurately converts your phone conversations into text on your mobile device. Get started now.


Never miss a detail. Review call transcripts when you’re not sure you caught everything the first time.
Olelo works on both Android and iPhone mobile phones wherever you have WiFi or mobile data.
Keep the conversation flowing with captions that appear in less than a second. There's no annoying lag.
Olelo even captions voicemail so you can read messages for details and retrieve callback numbers.
Don't worry about missing important emergency details. We caption 911 calls in real time.
Import your phone's contacts into Olelo. You'll have fast access to the people you call most.
How CaptionCall works
We transform your phone calls into text instantly and display it on the big, auto-scrolling screen.
We have been fine tuning our captioned telephone service for the hard-of-hearing since 2010 to give you the best captioned phone experience.
How Olelo works
You can take Olelo, our real-time phone caption app, wherever you go.
We have advanced automatic speech recognition that instantly and accurately converts your conversations into text on your mobile device. It’s easy and private.
Sorenson Scoops


CaptionCall & Sorenson Merge
Sorenson launched its phone call captioning service in 2010 as CaptionCall, which has become the leader in the industry.
In 2022, our global rebranding initiative kickstarted the transition to bring CaptionCall and Sorenson products and services together under one brand.
Need Help?
Our support team is here to help you with technical support issues.If you prefer the DIY approach, get started on your own with our user guides and training videos. If you’re having trouble connecting, check here for service outages.
Frequently Asked Questions
If you have questions we haven’t answered here, check our support page or contact our excellent Customer Care team.
No. Telephone captioning is a no-cost ADA service the government funds to help people with hearing loss who need captioning to communicate on the phone
All captioned call companies receive compensation from the same Telecommunications Relay Services (TRS) Fund through the Federal Communications Commission (FCC) under the Americans with Disabilities Act (ADA). CaptionCall by Sorenson receives compensation from the TRS Fund by the minute for captioned calls.
Yes, you can pair wireless hearing aids with your mobile phone to stream audio, and the Olelo by Sorenson mobile app displays captions for both sides of the conversation.
Yes. Only people with hearing loss who need captions to use the phone effectively may use CaptionCall and Olelo. This isn’t just our policy; it’s the law. The Federal TRS/IP CTS fund supports Sorenson’s call captioning services and only permits Deaf and hard-of-hearing users to register for service.
Internet Protocol Captioned Telephone Service (IP CTS) is a form of telecommunications relay service (TRS) that enables an individual who can speak, but who has difficulty hearing, to use a phone. They can simultaneously listen to the other person and read captions of what the other person is saying.
As part of the requirements of the IP CTS program, Sorenson must validate our users are actual people and not fictional or fraudulent sign-ups. This is the only reason we ask for your registration information, and we never sell, share, or use it for third-party marketing or any other purpose.
If you have qualified hearing loss to use our CaptionCall service, we’ll also provide a CaptionCall phone to you at no cost.
As long as you have either a landline phone service, high-speed internet, or a smartphone, we can connect you with a CaptionCall phone. CaptionCall offers two free installation service options: Red Carpet Service installation with in-person installation and hands-on training or self-guided installation with virtual trainer support.
Anyone who qualifies for the CaptionCall service will receive a CaptionCall phone to access their call captioning. To qualify for CaptionCall, you must have hearing loss that necessitates the use of captioned telephone service. You must complete an easy self-certification process and provide other mandatory registration information.
CaptionCall uses the most advanced voice-recognition technology, captioning agents, and a fast transcription service to display written captions of what a caller is saying on a large, easy-to-read screen.
Yes, CaptionCall works with your current home phone number. You can also keep your current provider and plan.
Yes, in addition to adjusting the volume of your calls, you can also customize the CaptionCall phone to boost frequencies where you have the greatest hearing loss. To do this, leave the handset in the cradle, touch Settings on the screen, then touch Amplification to choose your preferences. You can find more information in the user guide.
No. CaptionCall works seamlessly with services from your provider, including call waiting, call forwarding, voicemail, and caller ID.
This will depend on the length of captions per call, but don’t worry; we give you enough space for months—even years—worth of calls.
If your phone does not make automatic updates to the Olelo app, you can manually update Olelo to make sure you have all the latest features.
For iPhones and iPads
- Open the AppStore on your iOS device.
- Tap on your account information in the upper-right corner.
- Scroll down to Upcoming Updates.
- Find the Olelo app and tap Update.
For Android Phones
- Open Google Play on your Android device.
- Tap on your account information in the upper-right corner.
- Go to Manage Apps & Device.
- Go to Available Updates.
- Scroll to the Olelo app and tap Upgrade.
To make it easy for the people you’re calling to know it’s you, Olelo allows you to use your current mobile phone number as your Caller ID. To enable or disable caller ID, click on the menu in the Olelo app, and select My Caller ID.
This is one of the first things we recommend you do when you start using the app. To set up call forwarding:
- Open the Olelo menu options by tapping on the menu icon.
- Tap Call Forwarding.
- Tap Enable.
- Tap Got it!
- Call the pre-filled activation code.
When on a call, look for the two letter As in the lower-right corner of your screen. Tap the larger A to enlarge the text size, and tap the smaller A to reduce the text size.
You can also change this and the colors of the captioning in Settings under the main menu.
This could be due to a setting that stops transcriptions for your side of the call, so that only the person you are speaking to produces captions. Go to the Settings tab in the menu at the upper-left corner of the app, and you’ll see the option to show your captions.
*911 Calling Advisory: Calling 911 from a landline remains the most reliable method of reaching emergency response personnel.
Olelo requires our users to have registered information that complies with United States 911 regulations. To ensure your correct address is in your Olelo app, go to the menu and select 911 Location. Verify your address so that, in case of an emergency, help will know where to go.
Please also see our Emergency Calling page for more information.
The app does not support making outgoing international calls, but you can receive and caption incoming international calls.
You can delete call transcripts in the Call History tab by tapping on the trashcan icon in the upper-right corner and choosing which transcripts you would like to delete. To delete all of your call transcripts, tap the select all button (the three squares with a check mark). You can also delete transcripts by sliding the call you’d like to delete to the left in the call history tab. You cannot recover deleted transcripts.
Download Olelo by Sorenson app
You can register and self-certify from within the mobile app and make your first call within minutes
Get started with CaptionCall by Sorenson
If you need captions to use the phone because of your hearing loss, complete this form to request CaptionCall service and our caption phone at no cost. You can also reach us at (833) 691-1600.