AudioCodes E-SBC User Manual

CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
■ [1] Info NORTEL = Sends DTMF digits
according to IETF Internet-Draft draft-
choudhuri-sip-info-digit-00.
■ [2] NOTIFY = Sends DTMF digits according to
IETF Internet-Draft draft-mahy-sipping-
signaled-digits-01.
■ [3] Info Cisco = Sends DTMF digits according
to Cisco format.
■ [4] RFC 2833 = The device handles DTMF as
follows:
✔ Negotiates RFC 2833 payload type using
local and remote SDPs.
✔ Sends DTMF packets using RFC 2833
payload type according to the payload type
in the received SDP.
✔ Expects to receive RFC 2833 packets with
the same payload type according to the
RFC2833PayloadType parameter.
✔ Removes DTMF digits in transparent mode
(as part of the voice stream).
■ [5] Info KOREA = Sends DTMF digits
according to Korea Telecom format.
Note:
■ When out-of-band DTMF transfer is used ([1],
[2], [3], or [5]), the DTMFTransportType
parameter is automatically set to [0] (DTMF
digits are erased from the RTP stream).
■ Digital interfaces: If an ISDN phone user
presses digits (e.g., for interactive voice
response / IVR applications such as retrieving
voice mail messages), ISDN Information
messages received by the device for each digit
are sent in the voice channel to the IP network
as DTMF signals, according to the settings of
the parameter.
■ For more information on DTMF transport, see
Configuring DTMF Transport Types.
■ You can also configure the parameter per
specific calls, using IP Profiles (IpProfile_
FirstTxDtmfOption). To configure IP Profiles,
see Configuring IP Profiles.
'Second Tx DTMF Option'
configure voip > gateway
dtmf-supp-service dtmf-and-
dialing > second-dtmf-
option-type
[SecondTxDTMFOption]
Defines the second preferred transmit (Tx) DTMF
negotiation method. The first preferred method is
configured by the FirstTxDTMFOption parameter.
For a description of the optional values for the
parameter, see the FirstTxDTMFOption parameter
above.
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AudioCodes E-SBC Specifications

General

Brand	AudioCodes
Model	E-SBC
Category	Gateway
Language	English