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Relay Services

Providing specially-trained operators to relay telephone conversations back and forth between people who are deaf, hard of hearing, or speech-disabled and all those they wish to communicate with by telephone.
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There are five circular photos with yellow lines connecting five individuals. Photo descriptions from left to right: 1) A woman sitting on a couch next to a wooden table. The table has a photo, lamp and a landline telephone with enlarged dial pad. The woman has dark skin, medium length hair, is wearing a white turtleneck top and is smiling while holding the telephone to her ear. 2) A girl with fair skin and strawberry blonde medium length hair is looking up to her left, away from the camera. She is wearing a tie-dyed sweatshirt. She has a feeding tube taped on her cheek. She is holding a tablet in both of her hands. 3) A man with dark skin and shaggy medium hair is looking away from the camera to his right. He is wearing a yellow shirt, silver necklace with pendant and a cordless headset phone. 4) A woman is sitting in front of her desk with a blue wall and a frame behind her. On her desk is a landline telephone and flowers. The woman has fair skin and red hair. She is wearing a pastel peach color buttoned up shirt and a black blazer. She is holding the telephone to her ear and is smiling. 5) A man with dark skin and short hair is smiling away from the camera to his right. He is wearing glasses, an orange shirt and a plaid buttoned shirt that is left open. He also is wearing a hearing device around his neck.

Real-Time Text

Real Time Texting (RTT) is the revolutionary way to communicate in real-time through text during phone conversations. It's your gateway to inclusive and accessible communication.
  • A black man wearing a gold long sleeve shirt wearing a headset and microphone device to communicate with others.
  • A female young adult wearing rainbow tie dye sweatshirt, looking afar from her wheelchair, holding an iPad device in her hand.
  • An Asian man with black-rimmed glasses and hair, long sleeve plaid shirt and a green t-shirt, listening through a device and smiling.
  • A white Deaf man wearing a gold hat and gold-rimmed glasses. The man is wearing a tan t-shirt and has a flower tattoo on his left neck.
  • A blind Black woman wearing a white turtleneck shirt and blouse sitting on the couch, holding a white phone to her ear, listening to the caller on the other end of the line.
Real Time Texting (RTT) is a text communication technology that allows individuals to send and receive text messages in real-time during phone conversations. Unlike traditional text messaging, RTT enables text to be transmitted instantly as it's typed, making it a valuable tool for individuals who are deaf, hard of hearing, or have speech disabilities. RTT provides a more inclusive and accessible means of communication, ensuring that everyone can participate in phone conversations and receive information simultaneously.

RTT is primarily designed to benefit individuals who face communication barriers, such as those who are deaf, hard of hearing, or have speech disabilities. However, it can also be a valuable resource for our agents when interacting with clients who prefer or require text-based communication. By using RTT, you can ensure that every client receives the highest level of service, regardless of their communication preferences or needs. 

For more information check out the guide on the Federal Communications Commission website.

In addition to improving accessible emergency communications, RTT has several advantages over TTY:

  • RTT can eliminate the need to purchase specialized devices, such as TTYs, to send text in real time over wireless phones. 
  • Calls using RTT can be initiated and received using the same ten-digit numbers used for voice calls.
  • Both parties to an RTT call can send and receive text in real time at the same time, unlike TTYs, which requires turn-taking.
  • RTT is more reliable than TTY technology over IP networks – this means there will be less garbling and fewer drop-offs on calls.
  • RTT provides callers with more characters for typing than TTYs do.  For example, with RTT, you can use the “@” key, alphabets in multiple languages, and emojis, allowing conversations using the full “international character set.”
  • Both RTT and voice can be used, either at the same time or interchangeably, during the same call.

With RTT, you can call:

  • Other RTT users, regardless of the network or device they use
  • Emergency services by dialing 911
  • Relay services by dialing 711
  • TTY users, including individuals, businesses, and government agencies

The Federal Communications Commission (FCC) encourages service providers and manufacturers that support RTT to provide accessible call indicators to inform callers about audio activity that takes place during phone and incoming RTT calls. This is to ensure that people who cannot hear know when their outgoing calls are answered or when they reach a busy signal – just as ringtones and aural busy signals provide such notification to people who can hear.  

Also, the FCC encourages inclusion of the following features and capabilities typically available to voice telephone users:  

  • Latency and error rates that are functionally equivalent to real-time voice telephone communications.
  • The ability for callers to use teleconferencing, caller ID features, interactive voice response systems and to transfer calls.
  • The ability for callers to control text settings, such as font, size and color.
  • Making RTT a pre-installed feature of wireless devices that is enabled by a default setting – so RTT is readily available without the need to turn it on.

Interested or need assistance?

For more information or assistance on services and how we can assist you or those that you care about, please call us or fill out the form below.
Call 1-800-806-1191
A younger masculine-presenting individual showing an older feminine-presenting individuals how to use their phone.


Contact Center
P.O. Box 30310
Stockton, CA 95213
Phone/VP: 1-800-806-1191
Fax: 1-800-889-3974


Welcome to California Connect, also called the Deaf and Disabled Telecommunications Program (DDTP), which provides communication access for Californians with hearing, vision, cognitive, mobility, and speech-related disabilities. The program of the California Public Utilities Commission (CPUC) includes accessible communication equipment and devices, relay service, and Augmentative and Alternative Communication (AAC) devices.
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