LG G5 User Manual page 71

Warning: 9-1-1 Emergency Calling – It is recommended that TTY users make emergency calls
by other means, including Telecommunications Relay Services (TRS), analog cellular, and landline
communications. Wireless TTY calls to 9-1-1 may be corrupted when received by public safety
answering points (PSAPs), rendering some communications unintelligible. The problem
encountered appears related to TTY equipment or software used by PSAPs. This matter has been
brought to the attention of the FCC, and the wireless industry and the PSAP community are
currently working to resolve this.
Making Connections Phone Calls and Voicemail 61