| Description | This attribute defines whether the VISM has the
capability to negotiate the list of events
either NSE or NTE(Named Telephony Events), using
rtpmap and fmtpmap in the SDP.
If the value is 'true(1)', then VISM will accept
rtpmap and fmtpmap in the SDP. Any events NSE/NTE
not listed will be interpreted as not supported.
If the value is 'false(2)', then VISM will neither
include nor accept rtpmap for X-NSE & X-NTE, and
fmtpmap. For the backward compatibility sake VISM
will transmit DTMF digits using NSEs if the value
is 'false(2).' |