ZyXEL Communications IES-1248-51 Betriebsanweisung PDF herunterladen (Seite 334)

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Chapter 45 VoIP

IES-1248-51V User’s Guide

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The following table describes the labels in this screen.

Table 116 VoIP > DSP Profile

LABEL DESCRIPTION

Index This is an incremental number indicating the order in which the DSP

profiles were created.

Name This is the name of the DSP profile.

Select Select the DSP profile you wish to load or delete.

Load Select a DSP profile and click this in order to edit its configuration in the

lower portion of this screen.

Delete Select a DSP profile and click this to delete the profile. Once deleted,

information cannot be retrieved.

Name Enter a name for this DSP profile.

Allowed This is the list of codecs to use in negotiation for this DSP profile. The

codecs are listed by priority: the system tries to use the codec at the top

of the list first and, if that is not possible, tries the second, and so on.

Not Allowed This is the list of codecs supported by the system but not used in this

DSP profile.

<- Use this to move the selected codec from the Not Allowed list to the

Allowed list.

-> Use this to move the selected codec from the Allowed list to the Not

Allowed list.

Priority + Use this to increase the priority of the selected codec by moving it up

one place in the list.

Priority - Use this to decrease the priority of the selected codec by moving it down

one place in the list.

Min Play Buffer

Delay

This is the minimum time delay of the play buffer (10 ~ 500

milliseconds, must be less than or equal to the Max Play Buffer

Delay).

Max Play

Buffer Delay

This is the maximum time delay of the play buffer (10 ~ 500

milliseconds, must be greater than or equal to the Min Play Buffer

Delay).

Echo Tail This is the echo-cancellation echo tail period (8/16/32/128

milliseconds).

Echocancel Select this to enable echo cancellation.

Vad Select this to enable Voice Activity Detection (VAD).

G711 VPI Set the Voice Packetization Interval for G.711.

G723 VPI Set the Voice Packetization Interval for G.723.

G726 VPI Set the Voice Packetization Interval for G.726.

G729 VPI Set the Voice Packetization Interval for G.729.

802.1p Priority Set the IEEE 802.1p priority value for traffic using this DSP profile.

DSCP Set the DiffServ Code Point (DSCP) value for traffic using this DSP

profile.

Add This button appears when you are configuring a new profile. Click this to

save the profile and add it to the list.

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