Yealink SIP-T52S Administrator's Guide

Configuring Audio Features
827
Parameters
Permitted Values
Default
Menu->Basic->Sound->Touch Tone
To configure touch tone via web user interface:
1. Click on Features->Audio.
2. Select the desired value from the pull-down list of Touch Tone.
3. Click Confirm to accept the change.
To configure touch tone via phone user interface:
1. Tap Menu->Settings->Basic Settings ->Sound->Touch Tone.
2. Tap or to select the desired value from the Touch Tone field.
3. Tap the Save soft key to accept the change.
Distinctive Ring Tones
Distinctive ring tones allows certain incoming calls to trigger IP phones to play distinctive ring
tones. The IP phone inspects the INVITE request for an "Alert-Info" header when receiving an
incoming call. If the INVITE request contains an "Alert-Info" header, the IP phone strips out the
URL or keyword parameter and maps it to the appropriate ring tone.
Note
Alert-Info headers in the following four formats:
1) Alert-Info: Bellcore-drN
2) Alert-Info: ringtone-N (or Alert-Info: MyMelodyN)
3) Alert-Info: <URL>
4) Alert-Info: info=info text;x-line-id=0
1) Alert-Info: Bellcore-drN
When the Alter-Info header contains the keyword “Bellcore-drN”, the IP phone will play the
desired ring tone.
If the caller already exists in the local directory, the ring tone assigned to the caller should be
preferentially played.

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