Yealink SIP-T53W Administrator's Guide

Audio Features
152
Examples:
Alert-Info: http://127.0.0.1/Bellcore-dr1
Alert-Info: test/Bellcore-dr1
Alert-Info: Bellcore-dr1
Alert-Info: Bellcore-dr1;x-line-id=1
Alert-Info: <http://10.1.0.31 > ;info=Bellcore-dr1
The following table identifies the different Bellcore ring tone patterns and cadences (These ring tones are designed
for the BroadWorks server).
Bellcore Tone
Pattern
ID
Pattern Cadence
Minimum Duration
(ms)
Nominal Duration
(ms)
Maximum Duration
(ms)
Bellcore-dr1(stand-
ard)
1
Ringing l 2s On 1800 2000 2200
Silent l 4s Off 3600 4000 4400
Bellcore-dr2 2
Ringing Long 630 800 1025
Silent 315 400 525
Ringing Long 630 800 1025
Silent 3475 4000 4400
Bellcore-dr3 3
Ringing Short 315 400 525
Silent 145 200 525
Ringing Short 315 400 525
Silent 145 200 525
Ringing Long 630 800 1025
Silent 2975 4000 4400
Bellcore-dr4 4
Ringing Short 200 300 525
Silent 145 200 525
Ringing Long 800 1000 1100
Silent 145 200 525
Ringing Short 200 300 525
Silent 2975 4000 4400
Bellcore-dr5 5 Ringing 450 500 550
Note: If the user is waiting for a call, “Bellcore-dr5” is a ring splash tone that reminds the user that the DND or
Always Call Forward feature is enabled on the server side.
Alert-Info: ringtone-N/Alert-Info: ringtone-RingN.wav (or Alert-Info:
MyMelodyN/Alert-Info: MyMelodyRingN.wav)
When the Alter-Info header contains the keyword “ringtone-N/ringtone-RingN” or “MyMolodyN/MyMelodyRingN”,
the phone will play the corresponding local ring tone (RingN.wav), or play the first local ring tone (Ring1.wav) in

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