Specifications
Chapter 4 – Voice Commands 
Multi-Tech Systems, Inc. SocketModem MT5600SMI/MT5656SMI Reference Guide (S000306B)  98 
<DLE> Shielded Event Codes Sent to the DTE 
Table 4-2 lists the supported <DLE> shielded codes sent to the DTE in the expression <DLE><code>. 
The number in parenthesis in the second column corresponds to the T.50 equivalent. 
Table 4-2. Supported <DLE> Shielded Codes Sent to the DTE 
Code  T.50 Equivalent  Event Report Description 
<DLE>  (1/0)  Two contiguous <DLE><DLE> codes indicate a single <DLE> in the 
data stream 
<SUB>  (1/10)  <DLE><DLE> in the data stream 
<ETX>  (0/3)  End Data State 
X  (5/8)  Packet Header for the “Complex Event Detection Report” 
.  (2/14)  Packet Terminator for the “Complex Event Detection Report” 
/  (2/15)  Start of DTMF tone shielding 
~  (7/15)  DTMF transitions to off 
R (5/2) Ring 
1 (3/1) DTMF 1 
2 (3/2) DTMF 2 
3 (3/3) DTMF 3 
4 (3/4) DTMF 4 
5 (3/5) DTMF 5 
6 (3/6) DTMF 6 
7 (3/7) DTMF 7 
8 (3/8) DTMF 8 
9 (3/9) DTMF 9 
0 (3/0) DTMF 0 
A  (4/1)  Extended Keypad DTMF A 
B  (4/2)  Extended Keypad DTMF B 
C  (4/3)  Extended Keypad DTMF C 
D  (4/4)  Extended Keypad DTMF D 
*  (2/10)  Extended Keypad DTMF E 
#  (2/3)  Extended Keypad DTMF F 
o  (6/15)  Receive Buffer Overrun 
c (6/3) Facsimile Calling 
e (6/5) Data Calling 
h  (6/8)  Line Current Break (local phone goes on-hook) 
H  (4/8)  Line Current Detected (local phone goes off-hook) 
s  (7/3)  “Presumed Hangup”(SILENCE) Time-out 
q  (7/1)  “Presumed End of Message” (QUIET) Time-out 
J (4/10) SIT Signal 
l (6/12) Loop Current Interruption 
r (7/2) Ringing Tone 
b (6/2) BUSY 
d (6/4) DIAL TONE 
u  (7/5)  Transmit Buffer Underrun 
p  (7/0)  Line voltage increase 
P  (5/0)  Line voltage decrease (extension pickup) 
a  (6/1)  Facsimile or Data Answer 
f (6/6) Data Answer 










