Digital Acoustics IP7-MZC-FD, Application Manual

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37 Sherwood Terrace, Suite 111
Lake Bluff, IL 60044 U.S.A.
Tel 847-604-9256 Fax 847-604-9346
www.digitalacoustics.com
SIP StandAlone
Once a SIP call has been initiated, DTMF commands can be sent to the IP7-MZC-FD to:
● Turn on/off individual speakers and/or microphones in each audio zone
● Turn on/off pre-defined Zone Groups
● Activate the IP7-MZC-FD’s onboard “double pole double throw” relay
Please note:
​
The IP7 only recognizes Out of Band DTMF codes
To activate the audio zones attached to the IP7-MZC-FD (Multi-Zone Controller), DTMF commands
may be sent across the active SIP channel
​
via software control or via the phone’s keypad. Each digit
must be sent within 3000ms of the previous key or the command will timeout.
A #9 followed by 24 ASCII digits indicates the mics and/or speaker on each of the 12 Zone Extension
boards to be controlled:
● Two ASCII digits are used for each zone extension board. The first digit represents the 4 mics
and the second digit represents the 4 speakers
● Each ASCII digit is constructed as a hex "nibble" or four bits to indicate the audio path that
needs to be activated. So:
○ 0001 = 1 = 1st mic or speaker
○ 0010 = 2 = 2nd mic or speaker
○ 0100 = 4 = 3rd mic or speaker
○ 1000 = 8 = 4th mic or speaker
● The bits are added together resulting in a digit with value of 0 - F.
● If the resulting value is equal to 10 (hex A), substitute an (A) keypress
● If the resulting value is equal to 11 (hex B), substitute a (B) keypress
● If the resulting value is equal to 12 (hex C), substitute a (C) keypress
● If the resulting value is equal to 13 (hex D), substitute a (D) keypress
● If the resulting value is equal to 14 (hex E), substitute an asterisk (*) keypress
● If the resulting value is equal to 15 (hex F), substitute a pound sign (#) keypress
Here are a few examples:
● To turn on the 1st mic and 1st speaker on the first Zone Extension board, send
#9110000000000000000000000
● To turn on all four mics and all four speakers on the first Zone Extension board send
#9##0000000000000000000000
● To turn on the first speaker on the first and second Zone Extension board (zones 1 and 5), send
● #9010100000000000000000000
The selected Zones will stay activated till a new zone activation command is sent. The zones are
automatically deactivated when the SIP call is ended
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