Yealink SIP-T53W Administrator's Guide

Advanced Features
458
Topics
Intercom Key Configuration
State Monitor for Intercom Contact
Outgoing Intercom Configuration
Incoming Intercom Configuration
Intercom Key Configuration
You can configure an Intercom key to provide users the ability to initiate intercom calls directly to the specified con-
tact.
The following shows configuration for an Intercom key.
Line Key Configuration Programmable Key Configuration
linekey.X.type = 14
linekey.X.line = 1
linekey.X.value = 4603
linekey.X.label = Bill
programablekey.X.type = 14
programablekey.X.line = 1
programablekey.X.value = 4603
After provisioning, an Intercom key for Bill (4603) is available on the phone. You can press the Intercom key to
place an intercom call to Bill (4603).
If you want to use the Intercom key to pick up a call, you need to enable the Intercom key to monitor state changes,
and configure the pickup code for the Intercom key, for example, set “linekey.X.extension = *97” or “pro-
gramablekey.X.extension = *97“. When the monitored user Bill (4603) receives an incoming call, you can press the
Intercom key to pick up the call to Bill (4603) directly.
Note: You cannot use a programmable key to monitor an intercom contact for state changes, but press it to pick up a call.
Related Topics
Line Keys Configuration
Programmable Keys Configuration
State Monitor for Intercom Contact
State Monitor for Intercom Contact
You can make the phone to monitor a specific intercom user for state changes (busy or idle). When the monitored
user receives an incoming call, the supervisor can press the intercom key to pick up the call directly. The phones
support this feature using a SUBSCRIBE/NOTIFY mechanism as specified in RFC 3265. It is not available on the All
phones except T19(P) E2 phones.
Note: If you want to use the Intercom key to pick up a call, you need to configure the pickup code for the Intercom key, for
example, “linekey.X.extension = *97”.
Topics
State Indicator of Intercom Contact
State Monitor for Intercom Contact Configuration
State Indicator of Intercom Contact
The following table shows the LED indicator associated with the Intercom key:
LED Status
Description
Solid green The monitored user is idle.

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