Yealink SIP-T52S User Manual

Advanced Phone Features
165
Using Intercom
You can use the intercom key in the following ways:
 Place a call to the target extension
 Pick up an incoming call of the target extension
Note
Placing an Intercom Call to the Target Extension
Procedure:
1. Press the intercom key.
The target extension plays a warning tone and automatically answers the call in the
hands-free (speakerphone) mode by default.
2. To end the intercom call, press the intercom key again or End Call.
You can also press the BLF/BLF List key (refer to Configuring a BLF Key/Configuring BLF List
Settings) to initiate an outgoing intercom call to the monitored user. Check with your system
administrator to find out if it is available on your phone.
Picking up an Incoming Call of the Target Extension
When the target extension receives an incoming call, the intercom key LED of the target
extension will flash green on all other IP phones. If you configure the directed call pickup code
in advance (refer to Configuring the Directed Call Pickup), you can pick up the target extension’s
incoming call by pressing the intercom key. The directed call pickup code can be configured
with the intercom key. For more information, refer to Configuring an Intercom Key.
Procedure:
1. Press the intercom key.
The incoming call of the target extension is answered on your IP phone.
Note
Multicast Paging
Multicast Paging allows you to easily and quickly broadcast instant audio announcements to
users who are listening to a specific multicast group on a specific channel. You can configure a
multicast paging key or the paging list key on the phone, which allows you to send a Real Time
If the directed call pickup code is not configured, the phone will place a call to the target
extension instead of picking up an incoming call of the target extension when you press the
intercom key.
To use the intercom key to pick up an incoming call, make sure the intercom subscription feature
is enabled. For more information, contact your system administrator.

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