Parameter Description
[CEDTransferMode]
Determines the fax CED tone transfer mode.
[0] = (Default) The device transfers the CED tone in relay mode
and starts the fax session immediately.
[1] = The device transfers the CED tone in either voice or
bypass mode and starts the fax session on V21 preamble.
Notes:
For this parameter to take effect, a device reset is required.
This parameter is applicable only if the IsFaxUsed parameter is
set to 1 (T.38 Relay).
Web: T38 Fax Session
Immediate Start
CLI: t38-sess-imm-strt
[T38FaxSessionImmediateSt
art]
Enables fax transmission of T.38 "no-signal" packets to the
terminating fax machine.
[0] Disable (default)
[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
CLI: V1501-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 Redundancy
Depth
CLI: SSE-redundancy-depth
[V1501SSERedundancyDept
h]
Defines the SSE redundancy depth.
The value range is 1-6. The default is 3.
Web: SPRT Transport Ch.0
Max Payload Size
CLI: SPRT-transport-channel0-
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.
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