D-Link DIV-140 User Guide
14
In.this.mode.of.fax.communication,.G711.codec.is.used..Device.will.automatically.switch.to.G711.codec.on.detection.of.FAX.tone.from.the.FAX.
machine.
In.this.mode.of.fax.communication,.T.38.codec.is.used..Device.will.automatically.switch.to.T.38.codec.on.detection.FAX.tone.from.the.FAX.machine..
If.both.the.modes.of.fax.communication.are.selected.then.preference.will.be.given.to.Fax.Relay.mode..Following.(FEC,.Packet.Redundancy.Level,.
and.Ellipsis).are.configurable.parameters.for.Fax.Relay.features.
This.feature.can.be.selected.to.activate.forward.error.correction.in.T.38.Fax.Relay.communication.
This.feature.can.be.selected.to.activate.packet.redundancy.in.T.38.Fax.Relay.communication.
This.feature.can.be.enabled.to.activate.newer.version.of.T.38.Fax.protocol.corrigendum.1..By.enabling.this.feature,.device.will.be.able.to.work.with.
newer.version.fax.devices..
The.device.cancels.the.echo.generated.by.the.hybrid.of.local.telephone.interface.and.phone.set.so.that.the.other.party.connected.to.the.channel.
will.not.hear.the.echo..The.parameters.associated.with.echo.cancellation.can.be.configured.here..Note:.The.default.values.should.be.good.enough.
for.most.cases.and.it.is.recommended.that.you.don’t.change.it.without.assistance.
Echo.Tail.Length:.This.specifies.the.time.span.over.which.echo.is.expected.to.arrive..Tail.length.of.4.~.8.milliseconds.is.good.enough.for.most.cases..
Range:.2.to.64.in.steps.of.2.(corresponding.to.1.to.32.milliseconds)..Default:.36.(i.e..18.milliseconds).
This.is.used.to.properly.align.the.delayed.signal.with.reference.signal..Range:.0.to.240.(corresponding.to.0.to.30.milliseconds)..Default:.0.(i.e..0.
milliseconds).
When.this.is.enabled,.the.DIV-140.detects.a.silence.interval.and.uses.silence.compression.to.save.on.bandwidth..This.feature.works.irrespective.
of.the.codec.selected..Default:.Enabled..
There.are.four.modes.in.which.DTMF.can.be.transmitted.
.
•.In.Band.Mode
.
•.Out.Of.Band.Mode
.
•.Info.Mode
.
•.Auto.Mode.
In.In.Band.Mode,.DTMF.packets.are.sent.in.band..In.Out.Of.Band.Mode,.DTMF.packets.are.sent.as.RTP.Packets.with.different.payload.type.as.
configured.in.DTMF.Payload.field..In.Info.Mode,.DTMF.packets.are.sent.as.SIP.INFO.Packets.and.in.Auto.Mode.the.mode.of.DTMF.transmission.
is.selected.automatically.to.In.Band,.Out.Of.Band.or.Info.according.to.the.remote.ends.capability..Default:.Auto.Mode.
Enter.the.payload.type.to.use.for.out.of.band.DTMF.packets..Range:.96.to.127..Default:.101.
Fax Pass Through:
Fax Relay:
FEC:
Packet Redundancy:
Elipsis:
Echo Tail Length:
Echo Delay
Compensation:
VAD:
DTMF Mode:
DTMF Pay Load:
Summary of Contents for DIV-140
Page 1: ......