Yealink SIP-T53W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
10
SIP Accounts Registration Configuration
292
PSTN Account Configuration
296
Registration Settings Configuration
297
Outbound Proxy in Dialog
299
Outbound Proxy in Dialog Configuration
299
Server Redundancy
300
Behaviors When Working Server Connection Fails
301
Registration Method of the Failover/Fallback Mode
301
Fallback Server Redundancy Configuration
301
Failover Server Redundancy Configuration
302
SIP Server Name Resolution
306
SIP Server Name Resolution Configuration
306
Static DNS Cache
307
Behave with a Configured DNS Server
307
Static DNS Cache Configuration
308
Logon Wizard
311
Logon Wizard Configuration
311
Multiple Line Keys per Account
313
Multiple Line Keys per Account Configuration
313
Auto Line Labels Rule Configuration
315
Default Account
315
Directory
317
Local Directory
317
Contact Avatars and Icons Picture Limit
317
Preparing the Tar Formatted File
317
Local Contact File Customization
319
XML Conversion Table
319
Local Contact File Elements and Attributes
319
Customizing Local Contact File
321
Local Contact Files and Resource Upload
321
Example: Adding Contacts Using a Contact File
323
Local Contacts Backup
324
Favorite Contacts
325
Favorites Configuration
325
Google Contacts
326
Google Contacts Configuration
326
Signing in to the Google Contact Server
327
Lightweight Directory Access Protocol (LDAP)
327
LDAP Attributes
327
Securely Storing the LDAP Credentials
328
LDAP Configuration
328
Remote Phone Book
335
Remote Phone Book File Customization
335
Remote Phone Book File Elements
335

Yealink SIP-T53W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP mobile phone
Product color	Gray
Keypad illumination	Yes
Wi-Fi standards	802.11a, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.2
Security algorithms	AES, HTTPS, SIPS
Networking standards	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	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Power consumption (typical)	2.3 W
Volume control	Buttons
Number of programmable keys	8
Storage temperature (T-T)	-30 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	3.7 \
Display resolution	360 x 160 pixels
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Number of DECT wireless handsets	4
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC

Weight and Dimensions

Depth	210.6 mm
Width	212 mm
Height	174.5 mm