Description | This object identifies optional start codes used when
the pktcSigDevVmwiSigProtocol is set to a value of
'dtmf(2)'. Different countries define different On Hook
Data Transmission Protocol signaling codes to support
VMWI.
When Dual-Tone Multi-Frequency (DTMF) is used, the VMWI
digits are preceded by a 'start code' digit, followed
by the digit transmission sequence ... (where
Sx represents the digits 0-9), and terminated by the 'end
code' digit.
For example,
... ... ... .
The start code for redirecting VMWI may be DTMF 'D'
The DTMF code 'B' may be sent by the network as a start
code for the transfer of information values, through
which special events can be indicated to the user. In
some countries, the '*' or '#' may be used instead of
'A', 'B', 'C', or 'D'.
The value of this MIB object MUST NOT persist across MTA
reboots. |