Specifications

159
Alphanumeric Page Input from a Touch-Tone Phone
There are two modes that can be used. A touch-tone keypad is hardly an ideal alpha input
device, so we have tried to make it as easy as possible to use. While it is not as nice as a
typewriter-style keyboard for entering a message, almost every place has one.
The Touch-Tone Speller message maximum is 254 characters. All the letters input in
Speller mode, plus all the digits input, plus any **dd input (count 4 per canned message)
are totaled and cannot exceed 254.
While in Speller mode, the touch-tone timeout is doubled, thus the typical 5-second
timeout is stretched to 10 seconds - to allow some time for thought.
Speller Mode 9
Using Touch-Tone Speller mode 9, you can send the message that follows by keying the
strings listed in Table 18.
“PLEASE CALL ARNOLD 820-6363”
Table 18: Example for using Touch-Tone Speller Mode 9
Each letter is specified by two “keystrokes”: first press the letter, then:
1. If it is the middle letter on the key, press the middle key on current row.
2. If it is the left letter on the key, press the left key on current row.
3. If it is the right letter on the key, press the right key on current row.
The keys of the phone are labeled in the normal way, with additions for the digits 1 and 0
as shown in Figure 18.
Keys Pressed Message Sent
#9 nothing sent - enters alpha entry mode 9 (1 beep heard by caller)
77 56 32 21 79 32 00 “PLEASE “
23 21 56 56 00 “CALL “
21 78 65 66 56 31 “ARNOLD”
0# “ ” - exit alpha entry mode (2 beeps heard by caller)
820*6363 820-6363