Yealink SIP-T41S 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-T41S Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Keypad illumination	Yes
Wi-Fi	No
Networking standards	IEEE 802.3af
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN interface type	Fast Ethernet
Supported network protocols	SIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, FTP/TFTP/HTTP/HTTPS
Volume control	Digital
Number of programmable keys	6
Lines quantity	6 lines
Phonebook capacity	1000 entries
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Input frequency	50/60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Display diagonal	2.7 \
Display resolution	192 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	CNG, G.711Mu, G.711a, G.723.1, G.726, G.729ab, VAD, iLBC
Certification	CE
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	212 mm
Height	175 mm
Package depth	223 mm
Package width	246 mm
Package height	120 mm