Programming the In-Band DTMF Protocol
6-2
Installation and Programming Manual
XX = Event number (00-19)
YY...YY = In-Band DTMF code sent by the PBX
Each DTMF code can contain up to twenty characters, including 0-9, A-D, *, #,
source and target. You can also include the following two wild cards to bypass
DTMF characters sent by your PBX and not relevant to the VoxBox operation:
•
Length (*9 + two digit number). For example, wild card *906
programs the VoxBox to ignore the next six DTMF characters received.
•
Separator (*0 + one digit character). For example, wild card *05
programs the VoxBox to ignore all DTMF characters until it receives a 5. Wild
card *0*4 programs the VoxBox to ignore all DTMF characters until it
receives a # (see Table 6-1).
Note: In the above examples 5 and # are also ignored.
Table 6-1 Entering an In-Band DTMF Code Using a Telephone
DTMF CHARACTER
NUMBER TO DIAL
Digits 0-9
0-9
* **
# *4
A *5
B *6
C *7
D *8
Length
*9 + XX
where XX is the number of DTMF characters to ignore
Separator
*0 + X
where X is the DTMF character (0-9, *, #, A-D) used as a
separator
Source
*1, indicates the caller’s number (not currently available)
