Msg: 5993 *Conference*
08-28-95 15:54:02
From: RON WIESEN
To : COMET _
Subj: REPLY TO MSG #5987 (DMTF)
In case you need basic info on the Dual-Tone Multi-Frequency (DTMF) Signaling Code, here it is. | Numeral | Frequency in Hertz | | 0697 | 0770 | 0852 | 0941 | 1209 | 1336 | 1477 | 1633* +---------+------+------+------+------+------+------+------+------ | 0 | | | | X | X | | | +---------+------+------+------+------+------+------+------+------ | 1 | X | | | | X | | | +---------+------+------+------+------+------+------+------+------ | 2 | X | | | | | X | | +---------+------+------+------+------+------+------+------+------ | 3 | X | | | | | | X | +---------+------+------+------+------+------+------+------+------ | 4 | | X | | | X | | | +---------+------+------+------+------+------+------+------+------ | 5 | | X | | | | X | | +---------+------+------+------+------+------+------+------+------ | 6 | | X | | | | | X | +---------+------+------+------+------+------+------+------+------ | 7 | | | X | | X | | | +---------+------+------+------+------+------+------+------+------ | 8 | | | X | | | X | | +---------+------+------+------+------+------+------+------+------ | 9 | | | X | | | | X | * 1633 Hertz is used in combination with the other seven frequencies for special-category signals.