STS (Speech to Speech)

People who have mild to moderate speaking difficulties—and can hear clearly on the phone—can use Maryland Relay’s Speech-to-Speech (or STS) service to stay connected. STS is ideal for, but not limited to, anyone living with:

  • Cerebral palsy
  • Multiple sclerosis
  • Muscular dystrophy
  • Parkinson’s disease
  • Stroke
  • Stuttering
  • Traumatic brain injury
  • Laryngectomy

How It Works

  • The STS user speaks with his or her own voice, voice synthesizer, voice enhancer, or other assistive device.
  • A Maryland Relay Operator listens to everything the STS user says and re-voices it, as needed, to the other person.
  • As that person responds, the STS user listens directly to what is said.

To Make an STS Call

  1. Dial 7-1-1 or 800-785-5630.
  2. A Maryland Relay Operator will greet you and provide his or her Operator identification number.
  3. Tell the Operator that you’d like to make a “Speech-to-Speech” or “STS” call. (You can also set up a Customer Profile, which automatically connects you to the appropriate Operator and lets him or her know your calling preferences.)
  4. Tell the Maryland Relay Operator the number you wish to call, along with any additional calling instructions if needed.
  5. You will then be asked if you wish for the Operator to revoice everything you say, or just when speech is difficult to understand. You control the Operator’s role during your call. You can instruct the Operator to intervene upon request from your or other person. You can also ask the Operator to mute your voice, if desired.

To learn more about placing and receiving STS calls, please call our STS User Training Line at 866-269-9006 (English) or 866-744-7471 (Spanish).

Visually Assisted STS
With Visually Assisted STS, Maryland Relay Operators use speech and visual cues to facilitate conversations for STS users via a live video connection. Learn more about Visually Assisted STS

Apply for FREE Assistive Equipment 
Free assistive telecommunications devices are available through the Maryland Accessible Telecommunications (MAT) program for qualified Maryland residents. Learn more about the MAT program. NEED LINK


Make a STS Call
Dial 7-1-1 or 800-785-5630

Get STS User Training
866-269-9006 (English)
866-744-7471 (Spanish)

Watch Video
How to Use STS 

Streamline Your Calls
Create a Customer Profile, a personal profile that automatically lets the Maryland Relay Operator know your communication preferences.