
Chapter 4 – Configuring Your MultiVOIP
MultiVOIP® Voice/Fax over IP Gateways 51
FXO Supervision Parameter Definitions (continued)
Disconnect Supervision fields
Enables supervision of call disconnection using DTMF tones.
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.
Enables supervision of call disconnection by detecting cessation of a pre-
specified tone from the PBX.
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.
any tone from Available
Tones list
Currently chosen disconnection supervision tone.
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