Yealink SIP-T21 E2 Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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Parameters
Permitted Values
Default
Note: It works only if the value of the parameter “voice.jib.adaptive” is set to 0 (Fixed).
Web User Interface:
Settings->Voice->JITTER BUFFER->Normal
Phone User Interface:
None
voice.jib.wifi.adaptive
0 or 1
1
Description:
Configures the type of jitter buffer in the wireless network.
0-Fixed
1-Adaptive
Note: It is only applicable to SIP-
T54S/T52S/T48G/T48S/T46G/T46S/T42S/T41S/T29G/T27G/CP920 IP phones.
Web User Interface:
None
Phone User Interface:
None
voice.jib.wifi.min
Integer from 0 to 500
60
Description:
Configures the minimum delay time (in milliseconds) of jitter buffer in the wireless
network.
Note: It works only if the value of the parameter “voice.jib.wifi.adaptive” is set to 1
(Adaptive). The value of the minimum delay time should be less than or equal to that of
the normal delay time (configured by the parameter “voice.jib.wifi.normal”). It is only
applicable to SIP-T54S/T52S/T48G/T48S/T46G/T46S/T42S/T41S/T29G/T27G/CP920 IP
phones.
Web User Interface:
None
Phone User Interface:
None
voice.jib.wifi.max
Integer from 0 to 500
500
Description:
Configures the maximum delay time (in milliseconds) of jitter buffer in the wireless

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English