AudioCodes Mediant 3000, User Manual

Page: 745 / 872

Version 6.6 745 Mediant 3000
User's Manual 53. Configuration Parameters Reference
Parameter Description
art]

[1] Immediate Start on Fax = Device activates T.38 fax relay
upon receipt of a re-INVITE with T.38 only in the SDP.

[2] Immediate Start on Fax & Voice = Device activates T.38 fax
relay upon receipt of a re-INVITE with T.38 and audio media in
the SDP.
This parameter is used for transmission from fax machines
connected to the device and located inside a NAT. Generally, the
firewall blocks T.38 (and other) packets received from the WAN,
unless the device behind NAT sends at least one IP packet from
the LAN to the WAN through the firewall. If the firewall blocks T.38
packets sent from the termination IP fax, the fax fails.
To overcome this, the device sends No-Op (“no-signal”) packets to
open a pinhole in the NAT for the answering fax machine. The
originating fax does not wait for an answer, but immediately starts
sending T.38 packets to the terminating fax machine.
Note: To enable No-Op packet transmission, use the NoOpEnable
and NoOpInterval parameters.
Web: Profile Number
EMS: Allocation Profile
[V1501AllocationProfile]
Defines the V.150.1 profile, which determines how many DSP
channels support V.150.1.
The value range is 0 to 20. The default is 0.
Note: For this parameter to take effect, a device reset is required.
Web/EMS: SSE Payload Type
Rx
[V1501SSEPayloadTypeRx]
Defines the V.150.1 (modem relay protocol) State Signaling Event
(SSE) payload type Rx.
The value range is 96 to 127. The default is 105.
Web/EMS: SSE Payload Type
Tx
[V1501SSEPayloadTypeTx]
Defines the V.150.1 (modem relay protocol) State Signaling Event
(SSE) payload type Tx.
The value range is 96 to 127. The default is 105.
Web/EMS: SSE Redundancy
Depth
[V1501SSERedundancyDept
h]
Defines the SSE redundancy depth.
The value range is 1-6. The default is 3.
Web/EMS: SPRT Payload
Type Rx
[V1501SPRTPayloadTypeRx]
Defines the V.150.1 SPRT protocol receipt Payload Type.
The range is 96 to 127. The default is 115.
Web/EMS: SPRT Payload
Type Tx
[V1501SPRTPayloadTypeTx]
Defines the V.150.1 SPRT protocol transmission Payload Type.
The range is 96 to 127. The default is 115.
Web: SPRT Transport Ch.0
Max Payload Size
[V1501SPRTTransportChann
el0MaxPayloadSize]
Defines the maximum payload size for V.150.1 SPRT Transport
Channel 0.
The range is 140 to 256. The default is 140.
Web: SPRT Transport Ch.2
Max Payload Size
[V1501SPRTTransportChann
el2MaxPayloadSize]
Defines the maximum payload size for V.150.1 SPRT Transport
Channel 2.
The range is 132 to 256. The default is 132.
Web: SPRT Transport Ch.2
Max Window Size
[V1501SPRTTransportChann
el2MaxWindowSize]
Defines the maximum window size of SPRT transport channel 2.
The value range is 8 to 32. The default is 8.