Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
155
Description
It configures the internal ringer text to map the keywords contained in the Alert-Info header.
Permitted
Values
String within 32 characters
Default
Blank
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Settings > Ring > Internal Ringer X
[2]
> Text
Other Phones:
Settings > Ring > Internal Ringer Text
Parameter
distinctive_ring_tones.alert_info.X.ringer
[2]
<y0000000000xx>.cfg
Description
It configures the desired ring tone for each internal ringer text.
Permitted
Values
l Integer from 1 to 10 (the digit stands for the appropriate ring tone) or ring tone name:
1 or Ring1.wav
2 or Ring2.wav
3 or Ring3.wav
4 or Ring4.wav
5 or Ring5.wav
6 or Ring6.wav
7 or Ring7.wav
8 or Ring8.wav
9 or Silent.wav
10 or Splash.wav
l Custom ring tone name (for example, Customring.wav)
Default
1
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Settings > Ring > Internal Ringer X
[2]
> File
Other Phones:
Settings > Ring > Internal Ringer File
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21
(P) E2, X=1-2; for T19(P) E2/CP920, X=1.
[2]
X is the ring tone ID. X=1-10.
Ringer Device
You can use either or both the speaker and the headset as the ringer devices. You can configure which ringer
device to be used when receiving an incoming call. For example, if the ringer device is set to Headset, ring tone will
be played through your headset.
If the ringer device is set to Headset or Headset&Speaker, the headset (either a wired headset, Bluetooth headset
or USB headset) should be connected to the IP phone and the headset mode also should be activated in advance.
The USB headset is only applicable to T57W/T54W/T53W/T53/T48U/T48S/T46U/T46S/T43U/T42S/T42U/T41S
phones.
You can press the HEADSET key to activate the headset mode. For more information, refer to the Yealink phone-
specific user guide.
It is not applicable to CP920 phones.

Yealink SIP-T48U Specifications

General

Handset type	Wired handset
Product type	IP Phone
Product color	Gray
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Voice codecs	AGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithms	AES, HTTPS, SRTP, TLS
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Front camera	-
AC adapter input voltage	100 - 240 V
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Keypad number of keys	29
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Width	226 mm
Height	185 mm