California Relay Service (CRS) 

CRS provides the full range of Relay services: TTY, Voice Carry Over (VCO), two-line Voice Carry Over (2LVCO), Hearing Carry Over (HCO), Speech-to-Speech (STS), Visually Assisted Speech-to-Speech (VA STS), ASCII, Voice, and Enhanced Voice Carryover (Captioned Telephone or CapTel). Although not provided through CRS, Internet Protocol Relay (IP Relay), Video Relay Services (VRS), and Web CapTel are also available as free, federally reimbursed services.

You can always reach CRS providers toll free.

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California Relay Service

 Hamilton Relay provides traditional Relay service including captioned telephone services in California.  
For more information go to: 

Relay Service 





















VA STS                    



Customer Service



STS User Training Line

1-877-632-9095-ask for STS UTL 1-877-419-8440-ask for STS UTL

To ensure best customer service, CRS users are encouraged to identify their customer preferences through a Customer Profile.

You can let your CRS provider know exactly how you want your calls handled. 

Your options include:

  • Language
  • Modality
  • Gender of Communications Assistant (CA)
  • Speed Dial of frequently called numbers
  • Long Distance Carrier
  • Slow Typing
  • Customized Greetings/Messages

    Please contact Hamilton Relay if you have any questions as to whether your customer preferences are handled correctly, including long distance carrier for toll calls.
    Read the CRS fact sheet about how toll call charges are changing.   

CRS Customer Service

If you have a problem with the Communications Assistant (CA) or the services provided by the Relay service provider, call the Customer Service number for your CRS provider.

If you are unable to resolve your problem, please contact one of the following numbers:

Contact the DDTP Consumer Affairs Specialist at:

  • Voice: 1-877-546-7414
  • TTY: 1-800-867-4323
  • FAX: 1-510-271-8324
  • Email: 

If you are still unable to resolve your problem, you can contact the California Public Utilities Commission (CPUC).

Contact the CPUC Communications Division at:

John Birznieks, CPUC Communications Division

  • Voice: 415-703-5888
  • Email:

 Further appeal may be made to the Federal Communications Commission (FCC) at the FCC Web site. Additional contact information:

  • Phone: 1-888-225-5322
  • TTY: 1-888-835-5322
  • ASL Videophone: 1-844-432-2275
  • FAX: 1-866-418-0232


    Federal Communications Commission
    445 12th street SW
    Washington, DC 20554


Long Distance and International Calls  

By using CRS, you can receive calls from anywhere in the United States or worldwide. Contact the CRS customer service number for more information.

Long distance charges are applicable for CRS calls outside of your local calling area. Access to CRS remains free via 711 or toll-free 800 numbers.

CRS users can choose the long distance company of their choice to bill their calls. You just tell the CRS operator which long distance company you want to use, and your call will be billed through that company (or carrier). You can use any long distance company that provides service in California, like Verizon, Sprint, SureWest, AT&T, and others. Whichever long distance company you pick will be the company responsible for billing you for all toll and long distance charges that will apply to all non-local calls you place through CRS.

If you do not choose a long distance company, or tell the Relay operator which long distance company you want to use, then your call will be billed automatically to AT&T Long Distance. Then AT&T Long Distance will bill you for your Relay call. If this happens, your California long distance Relay call will be billed in one of these ways:

A.    If you already are a customer of AT&T Long Distance, then your call will be billed according to whatever plan you have. For example, if you have an unlimited calling plan, then your long distance Relay call will be part of your unlimited calling plan.


B.    If you are an AT&T Long Distance customer who has a Direct Dialed Basic Rate Plan or the True Reach Plan, then your California Relay toll or in-state long distance call will be billed at $.10 a cents/minute.


C.    If you have any other company for your service but your California Relay call gets billed by AT&T Long Distance, then you will be billed at $.10 a cents/minute.

If you don’t have an AT&T long distance plan and have not identified another Long Distance carrier in your profile, the default long distance rates apply (i.e., AT&T’s Long Distance intrastate charges $.10 a cents/minute and interstate charges of $.10 a cents/minute will apply). You can register your preference for a Long Distance Provider in your Customer Profile:

    • Use the CRS user’s registered long distance carrier
    • Use a calling card