A D D I T I O N A L V O I P P A R A M E T E R S
C H A P T E R 1 4
239
ECOTEL 3G 16.1. Revised: 2011.
1 4 . 7 D T M F P A R A M E T E R S
1 4 . 8 C A L L F O R W A R D I N G P A R A M E T E R S
Table 14.10
Customized Parameters: VoIP DTMF
VoIP DTMF Parameters
VoipIBSDetectDir=<int>
Enter
1
and DTMF tones (and all other inband signaling) will be detected from the Ethernet side. Enter
0
for
DTMF tones to be detected from the PCM side (default). DTMF tones from the Ethernet side are transmitted
to the host as ISDN dialing information only if
1
is entered. In this case, set
VoipDtmfTransport
to
1
or
3
.
VoipDtmfTransport=<int>
0 (H.323) = DTMF relayed with H.225 signaling information.
0 (SIP) = DTMF relayed with SIP INFO.
1 = DTMF taken from audio stream and relayed to remote,
meanwhile no rtp data is sent.
2 (default) = DTMF and MF kept in audio stream and not relayed.
3 = DTMF taken from audio stream and relayed to remote as per RFC2833, meanwhile rtp data with silence
is sent.
4 = For SIP, SIP INFO messages will be converted to DTMF. For H.323, the H.245 user input will be converted
to DTMF.
6 (H.323 only) DTMF relayed with H.245 user input.
VoipDtmfFallback=<int>
If
VoipDtmfTransport=3
is set and the peer does not support DTMF transmission according to RFC
2833, the following settings apply:
2 = automatic fallback to inband
0 = automatic fallback to signaling messages (default)
VoipRFC2833PayloadType=<num>
This parameter changes the DTMF payload type. The default value is 96, a common value is 101.
VoipMinDigitOnTime=<ms>
Defines the minimum length of DTMF tones, to ensure DTMF tone detection. Default 0.
VoipMinInterDigitTime=<ms>
Sets a time interval for DTMF tone detection. Default 0.
VoipComprDtmfInband=<list>
This parameter always forced DTMF-tone inband transmission for the configured voice codes, regardless of
what is configured for: VoipDtmfTransport=. The same codecs can be configured as for VoipCompres-
sion=<list>
