Chapter 4 – Configuring Your MultiVOIP
MultiVOIP® Voice/Fax over IP Gateways 53
FXO Supervision Parameter Definitions (continued)
Field Name Values Description
Disconnect Supervision fields
DTMF Tone Enables supervision of call disconnection using DTMF tones.
DTMF Tone Pairs
High Tones
Low Tones
1 2 3 A 697Hz
4 5 6 B 770Hz
7 8 9 C 852Hz
* 0 # D 941Hz
1209Hz 1336Hz 1447Hz 1633Hz
Disconnect Tone
Sequence
1
st
tone pair
+
2
nd
tone pair
These are DTMF tone pairs.
Values for first tone pair are: *, #, 0, 1-9, and A-D.
Values for second tone pair are: none, 0, 1-9, A-D, *, and #.
The tone pairs 1-9, 0, *, and # are the standard DTMF pairs found on phone
sets. The tone pairs A-D are “extended DTMF” tones, which are used for
various PBX functions.
Tone Detection Y/N Enables supervision of call disconnection by detecting cessation of a pre-
specified tone from the PBX.
Available Tones dial tone,
ring tone,
busy tone,
unobtainable tone (fast
busy),
survivability tone,
re-order tone
List from which tones can be chosen to signal call disconnection.
Disconnect
Tones
any tone from Available
Tones list
Currently chosen disconnection supervision tone.
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