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B. Configuration Files
79
B.4.7 Out-of-band Signalling Information
Out-of-band Signalling parameters configure the phones’ mode of signalling DTMF digits to a
remote endpoint. Figure B-14 lists the Out-of-band Signalling configuration parameters.
Parameter Description
Equivalent
web
interface
parameter
Version
Introduced
ABCDMODE Valid parameter options are:
TRANSITION - ABCD signalling is sent only at
ABCD event changes (such as a hook status
change).
CONTINUOUS - ABCD signalling is sent
continuously for the duration of a state (such as on
hook), and is not sent for the inverse of the state
(off hook).
Default value is TRANSITION.
section A.2.7
on page 54
3.35
DROPVOICE Specifies whether or not to drop voice packets
during transmission of RFC 2833 telephone event
RTP packets.
YES – drop voice packets when sending RFC 2833
packets.
NO – voice and RFC 2833 packets are mixed
Default value is YES
section A.2.7
on page 54
3.35
Figure B-14 Out of Band Signalling Parameters