AudioCodes Mediant 800B - Page 1177

Version 7.2 1177 Mediant 800B Gateway & E-SBC
User's Manual 72. Configuration Parameters Reference
Parameter Description
interfaces.
 If the functionality is configured for a specific Tel Profile,
the settings of the global parameter is ignored for calls
associated with the Tel Profile.
DTMF Parameters
notify-on-sig-end
[MGCPDTMFDetectionPoint]
Determines when the detection of DTMF events is notified.
 [0] = DTMF event is reported at the end of a detected
DTMF digit.
 [1] = (Default) DTMF event is reported at the start of a
detected DTMF digit.
Declare RFC 2833 in SDP
configure voip > gateway dtmf-supp-
service dtmf-and-dialing > rfc-2833-in-
sdp
[RxDTMFOption]
Global parameter that enables the device to declare the
RFC 2833 'telephony-event' parameter in the SDP. You can
also configure this functionality per specific calls, using IP
Profiles (IpProfile_RxDTMFOption). For a detailed
description of the parameter and for configuring this
functionality in the IP Profiles table, see 'Configuring IP
Profiles' on page 436.
Note: If this functionality is configured for a specific IP
Profile, the settings of this global parameter is ignored for
calls associated with the IP Profile.
First Tx DTMF Option
configure voip > gateway dtmf-supp-
service dtmf-and-dialing > first-dtmf-
option-type
[FirstTxDTMFOption]
Defines the first preferred transmit (Tx) DTMF negotiation
method.
 [0] Not Supported = (Default) No negotiation. DTMF
digits are sent according to the parameters
DTMFTransportType and RFC2833PayloadType. The
RFC 2833 payload type is according to the
RFC2833PayloadType parameter for transmit and
receive.
 [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 RFC2833Pa
yloadType
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).