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Yealink SIP-T48U Administrator's Guide

Yealink SIP-T48U
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Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
272
Macro Action Description
Example: 4411$Cwc$$Cp10$ defines dialing 4411 > > waitconnect > > con-
nected and lasts 10 seconds.
$T<type>$
The embedded action type. Multiple actions can be defined. Supported action
types include:
l invite
l dtmf
l refer
l intercom
Example: *338$Tdtmf$ defines sending the *338 by the type of DTMF.
Note: We recommend that you always define this field. If not, the supplied
digits are dialed using INVITE.
$M<macro>$
The embedded macro. The <macro > string must begin with a letter. If the
macro name is not defined, the execution of the action string will be ignored.
Example: $MAA$ means invoking the EDK macro AA.
$S<softkey ID>$
It has the same effect as pressing the desired soft key.
Each soft key has a unique identifier on the IP phone, you can configure this
parameter according to the system-defined softkey ID. If the softkey ID is not
defined on the phone or there is no matched soft key on the current screen,
the execution of the action string will be ignored. The softkey ID is case-insens-
itive.
Example: $Sanswer$ means pressing the Answer soft key.
Yealink phones support customizing soft keys. When the phone invokes a cus-
tom soft key, the prefix “#” must be added.
Example: If the custom softkey label is IVR1, the custom softkey ID is custom_
macro, then $S#custom_macro$ means pressing the IVR1 soft key.
Note: To view the softkey ID, you can set “features.enhanced_dss_key-
s.enable” and “edk.id_mode.enable to 1 (Enabled) and then long press the
Volume Up key when the phone is idle.
$K<key name>$
The functionality of performing this action is the same as that of pressing the
desired hard key.
Supported key names include:
l LineKeyX (for T57W/T48U/T48S/T48G, X=29; for
T54W/T46U/T46S/T46G/T29G, X=27; for T42U/T42G/T42S/T41P/T41S,
X=15; for T53W/T53/T43U/T27G, X=21; for T40P/T40G/T23P/T23G, X=3;
for T21(P) E2, X=2).
l SoftKeyX (X ranges from 1 to 4)
l ArrowUp (not applicable to T57W)
l ArrowDown (not applicable to T57W)
l ArrowLeft (not applicable to T57W)
l ArrowRight (not applicable to T57W)
l VolDown
l VolUp
l Cancel (not applicable to T57W)
l OK (not applicable to T57W)
l DialPadX (X ranges from 0 to 9)

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Yealink SIP-T48U Specifications

General IconGeneral
Handset typeWired handset
Product typeIP Phone
Product colorGray
USB 2.0 ports quantityUSB 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 supportYes
Ethernet LAN (RJ-45) ports2
Display diagonal7 \
Display resolution800 x 480 pixels
Lines quantity- lines
Phonebook capacity1000 entries
Number of VoIP accounts16
Voice codecsAGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithmsAES, HTTPS, SRTP, TLS
Ethernet LAN data rates10, 100, 1000 Mbit/s
Ethernet LAN interface typeGigabit Ethernet
Front camera-
AC adapter input voltage100 - 240 V
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Keypad number of keys29
Number of handles included1 pc(s)
Harmonized System (HS) code85171800
Weight and Dimensions IconWeight and Dimensions
Width226 mm
Height185 mm

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