Yealink SIP-T52S Administrator's Guide

Configuring Basic Features
431
Parameter
Permitted Values
Default
None
To configure 180 ring workaround via web user interface:
1. Click on Features->General Information.
2. Select the desired value from the pull-down list of 180 Ring Workaround.
3. Click Confirm to accept the change.
Use Outbound Proxy in Dialog
An outbound proxy server can receive all initiating request messages and route them to the
designated destination. If the IP phone is configured to use an outbound proxy server within a
dialog, all SIP request messages from the IP phone will be sent to the outbound proxy server
forcibly.
Note
To use this feature, make sure the outbound server has been correctly configured on the IP
phone. For more information on how to configure outbound server, refer to Account
Registration on page 223.

Yealink SIP-T52S Specifications

General

Touchscreen	-
Display diagonal	2.8 \
Backlight display	Yes
Display resolution	320 x 240 pixels
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
Bluetooth version	2.1+EDR
Security algorithms	802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface type	Gigabit Ethernet
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Voice codecs	G.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume control	Digital
Operating temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Front camera	No
Operating system installed	Linux

Weight and Dimensions

Depth	212 mm
Width	211.6 mm
Height	166.8 mm