ZyXEL Communications IES-1248-51 Guia do Utilizador descarregar pdf (Página 325)

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Chapter 45 VoIP

IES-1248-51V User’s Guide

325

DSP Profile This field displays the name of the Digital Signal Processing

(DSP) profile currently used on the port for voice calls. You

can also select another DSP profile for this port. Configure

DSP profiles in the VoIP > DSP Profile screen.

Data Profile This field displays the name of the Digital Signal Processing

(DSP) profile currently used on the port for voiceband data

(fax or modem) calls. See Section 45.1.8 on page 323.

If this field is blank, the IES-1248-51V uses the set DSP

Profile for the calls. You can also select another DSP profile.

Configure DSP profiles in the VoIP > DSP Profile screen.

Impedance This field displays the default voice band AC impedance

currently used on the port.

If you do not want to use the default impedance, select the

required AC impedance of the DSL port in the VoIP > VoIP

Port Setup > Port Edit screen.

Voice TX Gain

Voice RX Gain

Tx: This is the amount of gain (increase in signal power/

volume) applied on the voice signal received from the

subscriber and transmitted to the MGC.

Rx: This is the amount of gain (increase in signal power/

volume) applied on the voice signal received from the MGC

and transmitted to the subscriber.

These are measured in decibel and the range can be from -20

to 20.

A negative value decreases the signal power/volume.

Data TX Gain

Data RX Gain

Tx: This is the amount of gain (increase in signal power)

applied on the voiceband data (fax or modem) signal received

from the subscriber and transmitted to the MGC.

Rx: This is the amount of gain (increase in signal power)

applied on the voiceband data (fax or modem) signal received

from the MGC and transmitted to the subscriber.

These are measured in decibel and the range can be from -20

to 20.

A negative value decreases the signal power.

Copy From Select this to prepare to copy the specified port’s DSP

Profile, Tx/Rx Gain and Impedance settings to one or

more ports. Click the Copy button to complete the procedure.

Apply Click this to save your changes.

Copy Click this to copy the DSP Profile, Tx/Rx Gain and

Impedance settings from the selected port to one or more

ports. You must first select a port’s Copy From field.

Cancel Click this to return the fields in this screen to their last-saved

values.

Table 112 VoIP > VoIP Port Setup > Port View

LABEL DESCRIPTION

1 2 ... 320 321 322 323 324 325 326 327 328 329 330 ... 653 654

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