AudioCodes Mediant 800 - Page 1323

CHAPTER72 Configuration Parameters Reference
Mediant 800 Gateway & E-SBC | User's Manual
Parameter Description
'Fax Relay Redundancy Depth'
configure voip > media fax-modem >
redundancy-depth
[FaxRelayRedundancyDepth]
Defines the number of times that each
fax relay payload is retransmitted to the
network.
■ [0] 0 = (Default) No redundancy
■ [1] 1 = One-packet redundancy
■ [2] 2 = Two-packet redundancy
Note: The parameter is applicable only to
non-V.21 packets.
'Fax Relay Max Rate' (bps)
configure voip > media fax-modem >
max-rate
[FaxRelayMaxRate]
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 (default)
■ [6] 16800bps = 16.8 kbps
■ [7] 19200bps = 19.2 kbps
■ [8] 21600bps = 21.6 kbps
■ [9] 24000bps = 24 kbps
■ [10] 26400bps = 26.4 kbps
■ [11] 28800bps = 28.8 kbps
■ [12] 31200bps = 31.2 kbps
■ [13] 33600bps = 33.6 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.
■ Fax relay rates greater than 14.4
kbps are applicable only to V.34 /
T.38 fax relay. For non-T.38 V.34
supporting devices, configuration
greater than 14.4 kbps is truncated to
14.4 kbps.
'Fax Relay ECM Enable'
configure voip > media fax-modem >
ecm-mode
Enables Error Correction Mode (ECM)
mode during fax relay.
■ [0] Disable
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