Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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ilbc_15_2kpbs-iLBC_15_2kbps
ilbc_13_33kpbs-iLBC_13_33kbps
Example:
account.1.codec.g722.priority = 1
Note: The priority of the codec in the disable codec list is not specified, and numerical value 1 is
defined as the highest priority in the enable codec list. The name of the audio codec in this parameter
should be the correct one as listed in the above example, otherwise, the corresponding configuration
will not take effect.
Permitted
Values
Integer from 0 to 13 (17 for CP920 phones)
Default
When the audio codec is G722.1c (48kb/s), the default value is 1;
When the audio codec is G722.1c (32kb/s), the default value is 2;
When the audio codec is G722.1c (24kb/s), the default value is 3;
When the audio codec is G722.1 (24kb/s), the default value is 4;
When the audio codec is G722, the default value is 1 (5 for CP920 phones);
When the audio codec is PCMU, the default value is 2 (6 for CP920 phones);
When the audio codec is PCMA, the default value is 3 (7 for CP920 phones);
When the audio codec is G729, the default value is 4 (8 for CP920 phones);
When the audio codec is G726_16, the default value is 0;
When the audio codec is G726_24, the default value is 0;
When the audio codec is G726_32, the default value is 0;
When the audio codec is G726_40, the default value is 0;
When the audio codec is G723_53, the default value is 0;
When the audio codec is G723_63, the default value is 0;
When the audio codec is Opus, the default value is 0;
When the audio codec is iLBC_15_2kbps, the default value is 0;
When the audio codec is iLBC_13_33kpbs, the default value is 0;
Web UI
Account > Codec > Audio Codec
Parameter
account.X.codec.opus.para
[1]
<MAC>.cfg
Description
It configures the sample rate of the Opus audio codec.
Permitted
Values
opus-fb-Opus-FB (48KHz) (only for T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U/CP920)
opus-swb-Opus-SWB (24KHz) (only for T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U/CP920)
opus-wb-Opus-WB (16KHz)
opus-mb-Opus-MB (12KHz) (only for T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U/CP920)
opus-nb-Opus-NB (8KHz)
Default
opus-wb (opus-fb for CP920 phones)
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T46U, T46S, T43U, T42U, T42S, T41S, T27G, CP920

Yealink SIP-T57W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Ethernet LAN	Yes
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Security algorithms	AES, HTTPS, MD5, SRTP
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
Volume control	Buttons
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	7 \
Display resolution	800 x 480 pixels
Front camera	No
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, iLBC

Weight and Dimensions

Depth	220 mm
Width	259.4 mm
Height	211 mm