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Yealink SIP-T53W Administrator's Guide

Yealink SIP-T53W
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Advanced Features
464
Event
Description
Attended Transfer When the IP phone performs the semi-attended/attended transfer.
Hold When the IP phone places a call on hold.
UnHold When the IP phone resumes a held call.
Held When a call of the IP phone is held.
UnHeld When a held call is resumed.
Mute When the IP phone mutes a call.
UnMute When the IP phone un-mutes a call.
Missed Call When the IP phone misses a call.
IP Changed When the IP address of the IP phone changes.
Idle To Busy When the state of the IP phone changes from idle to busy.
Busy To Idle When the state of phone changes from busy to idle.
Reject Incoming Call When the IP phone rejects an incoming call.
Answer New-In Call When the IP phone answers a new call.
Transfer Failed When the IP phone fails to transfer a call.
Transfer Finished When the IP phone completes transferring a call.
Forward Incoming Call When the IP phone forwards an incoming call.
Autop Finish When the IP phone completes auto provisioning via power on.
Open Call Waiting When the IP phone enables the call waiting.
Close Call Waiting When the IP phone disables the call waiting.
Headset When the IP phone presses the HEADSET key (not applicable to CP920 phones).
Handfree When the IP phone presses the Speakerphone key (not applicable to CP920 phones).
Cancel Call Out When the phone cancels an outgoing call in the ring-back state.
Remote Busy When an outgoing call is rejected.
Call Remote Canceled When the remote party cancels the outgoing call in the ringing state.
Peripheral Information When the accessory is unplugged or plugged.
VPN IP When the phone IP address assigned by the VPN server changes.
Variable Values List
The following table lists predefined variable values.

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Yealink SIP-T53W Specifications

General IconGeneral
MountingDesk/Wall
Handset typeWired handset
Product typeIP mobile phone
Product colorGray
Keypad illuminationYes
Wi-Fi standards802.11a, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version4.2
Security algorithmsAES, HTTPS, SIPS
Networking standardsIEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface typeGigabit Ethernet
Supported network protocolsFTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modesIn-band, Out-of band, SIP info
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
Lines quantity8 lines
Phonebook capacity1000 entries
Number of VoIP accounts12
AC adapter input voltage100 - 240 V
AC adapter output current1.2 A
AC adapter output voltage5 V
Power consumption (typical)2.3 W
Volume controlButtons
Number of programmable keys8
Storage temperature (T-T)-30 - 70 °C
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Display diagonal3.7 \
Display resolution360 x 160 pixels
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Number of DECT wireless handsets4
Voice codecsG.722, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC
Weight and Dimensions IconWeight and Dimensions
Depth210.6 mm
Width212 mm
Height174.5 mm

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