Yealink SIP-T53W Administrator's Guide

Advanced Features
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features.call_park.park_retrieve_code = *11
After provisioning, the call park mode is set to Transfer. A Park soft key will display on the phone during an active
call and a Retrieve soft key will display on the Dialing screen. You can press the Park soft key to park a call to the
shared parking lot “*01”, or press the Retrieve soft key to retrieve the parked call from the shared parking lot “*01”
using the retrieve code “*11”.
Tip: You can set a line key as a Park key or a Retrieve key, specify a shared parking lot you want to park a call to for Park
key and specify a retrieve lot you want to retrieve a parked call from for Retrieve key. For more information, refer to Line
Keys.
Automatic Call Distribution (ACD)
ACD enables the use of phones in a call-center role by automatically distributing incoming calls to available users
or agents. You can enable users to use their phone in a call center agent/a supervisor role on a supported call
server.
The users can sign in and sign out of the ACD state as call center agent using soft keys. The server distributes calls
to the agent when the agent state is available, and stops distributing calls when the agent changes state to unavail-
able. The IP phone remains in the unavailable status until the agent manually changes the IP phone status. You
can configure how long the IP phone remains unavailable state and changes to available automatically on a sup-
ported call server.
Topics
ACD Key Configuration
ACD Configuration
Example: Setting ACD
ACD Key Configuration
You can configure a line key as ACD key to log into the ACD system. The ACD key on the IP phone indicates the
ACD state. ACD key is not available to T19(P) E2/CP920 phones.
The following shows configuration for an ACD key.
linekey.X.type = 42
linekey.X.label = ACD
After provisioning, an ACD key is available on the phone, and you can press the ACD key to log into the ACD sys-
tem.
ACD Configuration
The following table lists the parameters you can use to configure ACD.
Parameter
account.X.acd.enable
[1]
<MAC>.cfg
Description
It enables or disables the ACD feature.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
account.X.acd.available
[1]
<MAC>.cfg
Description
It enables or disables the phone to display the Available/Avail or Unavailable/Unavail soft key after
the phone logs into the ACD system.
Note: It works only if “account.X.acd.enable” is set to 1 (Enabled).

Yealink SIP-T53W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP mobile phone
Product color	Gray
Keypad illumination	Yes
Wi-Fi standards	802.11a, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.2
Security algorithms	AES, HTTPS, SIPS
Networking standards	IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Power consumption (typical)	2.3 W
Volume control	Buttons
Number of programmable keys	8
Storage temperature (T-T)	-30 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	3.7 \
Display resolution	360 x 160 pixels
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Number of DECT wireless handsets	4
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC

Weight and Dimensions

Depth	210.6 mm
Width	212 mm
Height	174.5 mm