Yealink SIP-T43U Administrator's Guide

Audio Features
154
Example:
Alert-Info: http://192.168.0.12:8080/Custom.wav
Alert-Info: info=info text;x-line-id=0
When the Alert-Info header contains an info text, the phone will map the text with the Internal Ringer Text pre-
configured (or “distinctive_ring_tones.alert_info.X.text” is configured) on the IP phone, and then play the ring tone
associated with the Internal Ringer Text (the ring tone can be configured by the parameter “distinctive_ring_
tones.alert_info.X.ringer”). If no internal ringer text maps, the phone will play the preconfigured local ring tone in
about 10 seconds.
Example:
Alert-Info: info=family;x-line-id=0
Alert-Info: <http://10.1.0.31 > ;info=family
Alert-Info: <http://10.1.0.31 > ;info=family;x-line-id=0
Auto Answer
If the INVITE request contains the following type of strings, the phone will answer incoming calls automatically
without playing the ring tone:
l Alert-Info: Auto Answer
l Alert-Info: info = alert-autoanswer
l Alert-Info: answer-after = 0 (or Alert-Info: Answer-After = 0)
l Alert-Info: Intercom
If the auto answer tone feature is enabled, the phone plays a warning tone to alert you before answering the incom-
ing call.
Related Topic
Auto Answer
Distinctive Ring Tones Configuration
The following table lists the parameters you can use to configure distinctive ring tones.
Parameter
account.X.alert_info_url_enable
[1]
<MAC>.cfg
Description
It enables or disables the phone to download the ring tone from the URL contained in the Alert-Info
header.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Account > Advanced > Distinctive Ring Tones
Parameter
features.alert_info_tone <y0000000000xx>.cfg
Description
It enables and disables the phone to map the keywords in the Alert-Info header to the specified
Bellcore ring tones.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
distinctive_ring_tones.alert_info.X.text
[2]
<y0000000000xx>.cfg

Yealink SIP-T43U Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Wall mountable	Yes
Sustainability certificates	REACH, RoHS
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Power consumption (typical)	2.2 W
Bluetooth version	4.1
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS, IPv6, LLDP/CDP/DHCP VLAN
USB 2.0 ports quantity	2
Lines quantity	12 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
Voice codecs	AGC, AJB, AMR-NB, AMR-WB, G.711Mu, G.711a, G.723.1, G.726, G.729ab, OPUS, PLC, VAD, iLBC
Number of handles included	1 pc(s)
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	3.7 \
Display resolution	360 x 160 pixels
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	206.2 mm
Width	224.9 mm
Height	174.9 mm
Package depth	223 mm
Package width	246 mm
Package height	120 mm