This instruction sheet provides step by step instructions for making a call to emergency services using the TTY type and read call option using the National Relay Service. Document NRS—Instruction sheet 7.6—TTY Type and Read—call to emergency services—November 2019 (342.43 KB) Document NRS—Instruction sheet 7.6—TTY Type and Read—call to emergency services—November 2019 (238.77 KB)