Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
315
Default
Blank
Supported
Devices
All phones except T19(P) E2 and CP920
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42U/T42G/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.
Auto Line Labels Rule Configuration
When assigning multiple line keys per account, these automatically assigned line keys use its Account Label (set
by “account.X.label”) as default label to display on the screen. In order to distinguish these automatically assigned
line keys, you can customize the line key labels one by one or configure the auto line labels rule for these line keys.
The following table lists the parameters you can use to configure the auto line labels rule.
Parameter
account.X.auto_label.enable
[1]
<MAC>.cfg
Description
It enables or disables the Auto Label feature. It is only applicable to the automatically assigned line
DSS keys.
Note: It works only if “features.auto_linekeys.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled, the line keys labels are determined by “account.X.label”.
1-Enabled, the line keys labels are determined by the custom label rule (configure by the parameter
“accout.X.auto_label.rule”).
Default
0
Supported
Devices
All phones except T19(P) E2 and CP920
Parameter
account.X.auto_label.rule
[1]
<MAC>.cfg
Description
It configures the Auto Label rule.
You need to know the following basic regular expression syntax:
{L}: The value is configured by the parameter “account.X.label”.
{N}: An increasing number from N. For example, abc{1}{5} represents the following labels: abc15,
abc26, abc37, and so on.
Multiple labels are separated by “|”. For example, Yea|Yea|Yea|Tom_{2} means to display “Yea” for
first three line keys, and from the fourth one, display label Tom_2, Tom_3, and so on in turn.
Other Characters: for example, ABC, will display ABC the same as what you have configured.
Note: It works only if “features.auto_linekeys.enable” and “account.X.auto_label.enable” are set to 1
(Enabled). The number of valid labels is configured by the parameter “account.X.number_of_linekey”.
Permitted
Values
String
Default
{L}_{1}
Supported
Devices
All phones except T19(P) E2 and CP920
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42U/T42G/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.
Default Account
If there are multiple accounts registered on the phone, the phone will use the default account to dial out by default.

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