User`s manual

Version 5.4 161 May 2008
SIP User's Manual 3. Web-Based Management
Table 3-35: DTMF and Dialing Parameters
Parameter Description
Max Digits in Phone Num
[MaxDigits]
Defines the maximum number of collected destination number digits that
can be received (i.e., dialed) from the Tel side when Tel-to-IP overlap
dialing is performed (ISDN uses overlap dialing). When the number of
collected digits reaches the maximum, the device uses these digits for the
called destination number.
The valid range is 1 to 49. The default value is 5 for Mediant 1000 analog
and 30 for digital.
Notes:
 Digit Mapping Rules can be used instead.
 For Mediant 1000: Dialing ends when the maximum number of digits is
dialed, the Interdigit Timeout expires, the '#' key is dialed, or a digit map
pattern is matched.
Inter Digit Timeout for
Overlap Dialing [sec]
[TimeBetweenDigits]
Defines the time (in seconds) that the device waits between digits that are
received (i.e., dialed) from the Tel side when Tel-to-IP overlap dialing is
performed (ISDN uses overlap dialing). When this inter-digit timeout
expires, the device uses the collected digits for the called destination
number.
The valid range is 1 to 10. The default value is 4.
Declare RFC 2833 in
SDP
[RxDTMFOption]
Defines the supported Receive DTMF negotiation method.
 [0] No = Don't declare RFC 2833 telephony-event parameter in SDP.
 [3] Yes = Declare RFC 2833 telephony-event parameter in SDP
(default).
The device is designed to always be receptive to RFC 2833 DTMF relay
packets. Therefore, it is always correct to include the 'telephony-event'
parameter as default in the SDP. However, some devices use the absence
of the 'telephony-event' in the SDP to decide to send DTMF digits in-band
using G.711 coder. If this is the case, you can set RxDTMFOption to 0.