AudioCodes Mediant 4000 SBC User Manual page 993

CHAPTER 60 Configuration Parameters Reference
'Fax Relay Max Rate' (bps)
configure voip > media fax-modem >
max-rate
[FaxRelayMaxRate]
'Fax Relay ECM Enable'
configure voip > media fax-modem >
ecm-mode
[FaxRelayECMEnable]
'Fax/Modem Bypass Coder Type'
[FaxModemBypassCoderType]
configure voip > media fax-modem >
fax-modem-telephony-events-mode
[FaxModemNTEMode]
'Fax Bypass Payload Type'
Parameter
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Mediant 4000 SBC | User's Manual
Description
Note: The parameter is applicable only to
non-V.21 packets.
Defines the maximum rate (in bps) at
which fax relay messages are
transmitted (outgoing calls).
■ [0] 2400 = 2.4 kbps
■ [1] 4800 = 4.8 kbps
■ [2] 7200 = 7.2 kbps
■ [3] 9600 = 9.6 kbps
■ [4] 12000 = 12.0 kbps
■ [5] 14400 = 14.4 kbps
Note:
■ The rate is negotiated between both
sides (i.e., the device adapts to the
capabilities of the remote side).
Negotiation of the T.38 maximum
supported fax data rate is provided in
SIP's SDP T38MaxBitRate
parameter. The negotiated
T38MaxBitRate is the minimum rate
supported between the local and
remote endpoints.
Enables Error Correction Mode (ECM)
mode during fax relay.
■ [0] Disable
■ [1] Enable (default)
Determines the coder used by the device
when performing fax/modem bypass.
Typically, high-bit-rate coders such as
G.711 should be used.
■ [0] G.711Alaw = (Default) G.711 A-
law 64
■ [1] G.711Mulaw = G.711 Mu-law
Determines whether the device sends
RFC 2833 ANS/ANSam events upon
detection of fax and/or modem Answer
tones (i.e., CED tone).
■ [0] = Disabled (default)
■ [1] = Enabled
Note: The parameter is applicable only
when the fax or modem transport type is
set to bypass or Transparent-with-
Events.
Defines the fax bypass RTP dynamic
payload type.