Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
10
Supported Accounts
294
SIP Accounts Registration Configuration
294
PSTN Account Configuration
298
Registration Settings Configuration
299
Outbound Proxy in Dialog
301
Outbound Proxy in Dialog Configuration
301
Server Redundancy
302
Behaviors When Working Server Connection Fails
303
Registration Method of the Failover/Fallback Mode
303
Fallback Server Redundancy Configuration
303
Failover Server Redundancy Configuration
304
SIP Server Name Resolution
308
SIP Server Name Resolution Configuration
308
Static DNS Cache
309
Behave with a Configured DNS Server
309
Static DNS Cache Configuration
310
Logon Wizard
313
Logon Wizard Configuration
313
Multiple Line Keys per Account
315
Multiple Line Keys per Account Configuration
315
Auto Line Labels Rule Configuration
317
Default Account
318
Directory
320
Local Directory
320
Contact Avatars and Icons Picture Limit
320
Preparing the Tar Formatted File
320
Local Contact File Customization
322
XML Conversion Table
322
Local Contact File Elements and Attributes
322
Customizing Local Contact File
324
Local Contact Files and Resource Upload
324
Example: Adding Contacts Using a Contact File
326
Local Contacts Backup
327
Favorite Contacts
328
Favorites Configuration
328
Google Contacts
329
Google Contacts Configuration
329
Signing in to the Google Contact Server
330
Lightweight Directory Access Protocol (LDAP)
330
LDAP Attributes
330
Securely Storing the LDAP Credentials
331
LDAP Configuration
331
Remote Phone Book
338
Remote Phone Book File Customization
338

Yealink SIP-T31G Specifications

General

Mounting kit	Yes
Number of handles included	1 pc(s)
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	G.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	3 W
Lines quantity	2 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	2
Sustainability certificates	RoHS, REACH
Networking standards	IEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	188 mm
Height	162 mm
Package depth	210 mm
Package width	213 mm
Package height	103 mm