Assistive technology is constantly evolving and CusterTel understands the importance of being able to stay in touch with friends and family. We are committed to providing the latest technology to our customers to address their specific needs, whether it is using a device that offers hearing aid compatibility or the ability to reach out using alternate methods.

Apple iPhone 14M3/T4BCG-E8138A
Apple iPhone 14 Pro MaxM3/T4BCG-E8141A
Apple iPhone 13M3/T4BCG-E3997A
Apple iPhone SE 3rd GenM3/T4BEG-E3042A
Apple iPhone 13 MiniM3/T4BCG-E3994A
Apple iPhone 11 Pro Max-64MbM3/T4BCG-E3306A
Orbic Journey RM3/T32ABGH-RC2250L
Samsung A03M3/T3ZCASMA037U
Samsung S21+M3/T3A3LSMG996U
Samsung S22M3/T3A3LSMS901U
Samsung Galaxy Z Flip4M3/T3A3LSMF721U
Samsung Galaxy Z Fold 3M3/T3A3ISMF926U

All phones have been tested and rated for use with hearing aids for some of the wireless technologies that they use. However, there may be some newer wireless technologies used that have not been tested yet for use with hearing aids. It is important to try the different features of a phone thoroughly and in different locations, using your hearing aid or cochlear implant, to determine if you hear any interfering noise. Consult your service provider or the phone manufacturer for information on hearing aid compatibility. If you have questions about return or exchange policies, consult your service provider or phone retailer.

Hearing Aid Compatibility

The FCC has established rules regarding Hearing Aid Compatibility (HAC), which all wireless carriers must follow. HAC ratings were developed to assist hearing device users in finding handsets that may be compatible with their hearing devices. Handsets must meet or exceed the ANSI (American National Standards Institute) ratings to meet the FCC requirements for Hearing Aid Compatibility. There are two standards or ratings. 

M Rating

Wireless phones which have an M3 or M4 rating meet the FCC requirements to be compatible with hearing devices which operate in acoustic coupling mode, also referred to as microphone mode. These devices amplify all sounds surrounding the user, both desired and undesired. A phone with an M3 rating meets the HAC requirement set by the FCC. A phone with an M4 rating exceeds the HAC requirement.

T Rating

Phones that are designated T3 or T4 meet FCC requirements to be compatible with hearing devices which operate in inductive coupling or telecoil coupling mode. These hearing devices avoid unwanted noise by turning off the microphone and using a telecoil, which picks up magnetic fields generated by the phone and converts them to sound. A phone with a T3 rating meets the HAC requirement set by the FCC. A phone with a T4 rating exceeds the HAC requirement.

For additional information regarding HAC devices and other accessibility features, please visit

For more information about the FCC’s rules and service provider obligations, see