The difference is clear
Clear conversations and reduced background noise so you feel like you’re right next to each other. Make and receive high-definition voice calls and enjoy:
To use AT&T HD Voice, both caller and receiver need an HD Voice capable phone and must be located within HD Voice coverage areas. Not all carriers have interoperability with AT&T HD Voice.
Building you a better network
AT&T HD Voice uses our all-IP, 4G LTE network. With HD Voice, you can have crystal clear conversations while surfing the Web at 4G LTE speeds - all on the nation's most reliable 4G LTE network. It's the best of both worlds.
Reliability claim based on third party data regarding nationwide carriers' 4G LTE. LTE is a trademark of ETSI. 4G LTE not available everywhere.
iPhone® XS includes HD Voice for crystal-clear conversations and reduced background noise.
*HD Voice is not available in all areas. HD Voice Requirements: To experience HD Voice, both parties on the call must be located in an HD Voice coverage area and have an HD Voice capable device and SIM with HD Voice set up on their account. Not all carriers have interoperability with AT&T HD Voice. Incompatible Services or Features: The following services and features are currently incompatible with HD Voice: OfficeDirect and OfficeReach (for business customers). HD Voice is available at no additional cost; standard voice rates apply and are charged according to your wireless rate plan.
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As a security measure, your session ends after 30 minutes of inactivity.
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