Policy Text
CATEGORY DATE ADOPTED LAST REVIEW NEXT REVIEW
4 01/24/2011 06/01/201 9 06/01/ 2021
TUSTIN POLICE DEPARTMENT
STANDARD OPERATING PROCEDURES
SS318 - Use of TTY/TDD Telephone Software 1 SS318 USE OF TTY/TDD TELEPHONE SOFTWARE
SS318 .1 PURPOSE AND SCOPE
This procedure establishes guidelines for use of TTY/TDD Telephone Software.
SS318 .1.2 ACCREDITATION STANDARDS
This procedure pertains to the following CALEA Standards: N/A
This procedure pertains to the following General Order(s): §802
SS318 .2 PROCEDURE
TTY is an abbreviation for teletypewriter. TDD is an abbreviation for telecommunications device
for the deaf . These terms are commonly used to describe calls received from hearing impaired
persons. TTY software has been installed in the Communications C enter on the phone consoles.
Communications Officers s hould familiarize themselves with the TTY software and i ts use. Below
are basic instructions for the TTY.
How to Answer a TTY call from all lines, including 9 -1-1:
a) Press the TTY button located on the right side of the Vesta phone display ;
b) When the TTY window pops up press “ Detect TTY ” to enable the TTY software ;
c) You can use the preformatted questions or type your own using the keyboard located
below the display monitor (copy attached) ;
d) Remember to end each sentence with “ga” so the caller knows it’s his/her turn to type
(“ga” means go ahead );
e) When the ca ll is finished type “sksk” to indicate the end of the call. (“sksk” means stop
keying );
f) Press close to return your screen to “normal” position .
The incoming call will ring just like a normal call. When you answer the phone, you should hear a
“tweedling” so und which will indicate a TTY call. If you don’t hear the “tweedling”, have a dead
line or you are unable to hear a caller State Law Requires Dispatch personnel to “sample” the call
for a possible TTY caller by manually starting the TTY software.
SS318.2. 1 ATTACHMENT
The attached photograph s show the on -screen display of preformatted TTY questions.
CATEGORY DATE ADOPTED LAST REVIEW NEXT REVIEW
4 01/24/2011 06/01/201 9 06/01/ 2021
TUSTIN POLICE DEPARTMENT
STANDARD OPERATING PROCEDURES
SS318 - Use of TTY/TDD Telephone Software 2
CATEGORY DATE ADOPTED LAST REVIEW NEXT REVIEW
4 01/24/2011 06/01/201 9 06/01/ 2021
TUSTIN POLICE DEPARTMENT
STANDARD OPERATING PROCEDURES
SS318 - Use of TTY/TDD Telephone Software 3