AudioCodes Media Pack MP-112, Руководство пользователя

Страница: 350 / 486

SIP User's Manual 350 Document #: LTRT-65412
MP-11x & MP-124
Parameter Description
EMS: Relay Volume (dBm) Determines the fax gain control.
The range -18 to -3 corresponds to -18 dBm to -3 dBm in 1-
dB steps. The default is -6 dBm fax gain control.
[FaxModemRelayVolume]
Web/EMS: Fax Bypass Output Gain Defines the fax bypass output gain control.
The range is -31 to +31 dB, in 1-dB steps. The default is 0
(i.e., no gain).
[FaxBypassOutputGain]
Web/EMS: Modem Bypass Output
Gain Defines the modem bypass output gain control.
The range is -31 dB to +31 dB, in 1-dB steps. The default is
0 (i.e., no gain).
[ModemBypassOutputGain]
Web/EMS: T.38 Max Datagram Size Defines the maximum size of a T.38 datagram that the
device can receive. This value is included in the outgoing
SDP when T.38 is used.
The valid range is 122 to 1,024. The default value is 122.
[T38MaxDatagramSize]
T38 Fax Max Buffer Defines the maximum size (in bytes) of the device's T.38
buffer. This value is included in the outgoing SDP when T.38
is used for fax relay over IP.
The valid range is 100 to 1,024. The default value is 1,024.
[T38FaxMaxBufferSize]
Web: Detect Fax on Answer Tone
EMS: Enables Detection of FAX on
Answer Tone Determines when the device initiates a T.38 session for fax
transmission.
[DetFaxOnAnswerTone]

[0] Initiate T.38 on Preamble = The device to which the
called fax is connected initiates a T.38 session on
receiving HDLC

Preamble signal from the fax (default).
[1] Initiate T.38 on CED = The device to which the called
fax is connected initiates a T.38 session on receiving a
CED answer tone from the fax. This option can only be
used to relay fax signals, as the device sends T.38 Re-
INVITE on detection of any fax/modem Answer tone
(2100 Hz, amplitude modulated 2100 Hz, or 2100 Hz with
phase reversals). The modem signal fails when using
T.38 for fax relay.
Notes:

For this parameter to take effect, you must reset the
device.

This parameters is applicable only if the ini
EMS: NTE Max Duration
file parameter
IsFaxUsed is set to 1 (T.38 Relay) or 3 (Fax Fallback).
Maximum time for sending Named Telephony Events (NTEs)
to the IP side, regardless of the time range when the TDM
signal is detected.
The range is -1 to 200,000,000 msec (i.e., 55 hours). The
default is -1 (i.e., NTE stops only upon detection of an End
event).
[NTEMaxDuration]
EMS: Basic Packet Interval Determines the basic frame size that is used during fax /
modem bypass sessions.
[FaxModemBypassBasicRTPPacke
tInterval]

[0]

= Determined internally (default)
[1]

= 5 msec (not recommended)
[2]

= 10 msec
[3] = 20 msec
Note: When set for 5 msec (1), the maximum number of
simultaneous channels supported is 120.