A common request for RFP is support for TTY. What is it? A TTY is a device that enables people who are deaf, hard of hearing, or speech-disabled to use the telephone by typing messages back and forth to one another instead of talking back and forth. In order to communicate, a TTY is required at both ends of the conversation, unless the call is placed through Relay. OCS now supports integration with TTY with OCS R2.
Under options you can turn on tty mode and connect a keyboard to a device such as the Catalina phones for OCS. I haven’t seen documentation on this yet but I’ll post when I know more.