AudioCodes Mediant 600 - Page 646

SIP User's Manual 646 Document #: LTRT-83310
Mediant 600 & Mediant 1000
Parameter Description
hook-flash, set this parameter to 550.
 This parameter can also be configured per Tel Profile, using the
TelProfile parameter.
DTMF Parameters
EMS: Use End of DTMF
[MGCPDTMFDetectionPoin
t]
Determines when the detection of DTMF events is notified.
 [0] = DTMF event is reported at the end of a detected DTMF digit.
 [1] = DTMF event is reported at the start of a detected DTMF digit
(default).
Web: Declare RFC 2833 in
SDP
EMS: Rx DTMF Option
[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 always 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 this
parameter to 0.
Note: This parameter can also be configured per IP Profile, using the
IPProfile parameter (see 'Configuring IP Profiles' on page 219).
Tx DTMF Option Table
Web/EMS: Tx DTMF Option
[TxDTMFOption]
This parameter table configures up to two preferred transmit DTMF
negotiation methods. The format of this parameter is as follows:
[TxDTMFOption]
FORMAT TxDTMFOption_Index = TxDTMFOption_Type;
[\TxDTMFOption]
Where Type is:
 [0] Not Supported = No negotiation - DTMF digits are sent
according to the parameters DTMFTransportType and
RFC2833PayloadType (default).
 [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.
 [5] INFO (Korea) = Sends DTMF digits according to Korea
Telecom format.
For example:
TxDTMFOption 0 = 1;
TxDTMFOption 1 = 3;
Notes:
 DTMF negotiation methods are prioritized according to the order of
their appearance.
 When out-of-band DTMF transfer is used ([1], [2], [3], or [5]), the
parameter DTMFTransportType is automatically set to 0 (DTMF
digits are erased from the RTP stream).
 When RFC 2833 (4) is selected, the device:
a. Negotiates RFC 2833 payload type using local and remote