Yealink SIP-T48U Administrator's Guide

Advanced Features
480
Variable Value Phone Action
swFwdOn=xxx=n
phone (“xxx” means the destination number)
The valid value of “n” means the duration time (seconds) before for-
warding incoming calls (n is the times of 6, for example, 24). It is only
applicable to no answer forward feature.
Note: For Yealink phones, it works only if “features.fwd.allow” is set
to 1 (Enabled) and call forward mode is Phone, the always/busy/no
answer forward feature will apply to all the accounts on the phone.
Example:
http://10.10.20.10/servlet?key=NoAnswFwdOn=1001=24
AlwaysFwdOff/BusyFwdOff/NoAnswFwdOff
Deactivate the always/busy/no answer forward feature for the IP
phone.
Note: For Yealink phones, it works only if “features.fwd.allow” is set
to 1 (Enabled) and call forward mode is Phone, the always/busy/no
answer forward feature will apply to all the accounts on the phone.
Example:
http://10.10.20.10/servlet?key=NoAnswFwdOff
CALLEND/CallEnd End a call.
ASW/CANCEL/HOLD/UNHOLD:xxx
Answer/end/hold/unhold a call (xxx refers to the call-id of the active
call).
Example:
http://10.10.20.10/servlet?key=ASW:33093
Note: To get the call-id of the active call, configure the action URL:
http(s)://<serverIPAddress>/help.xml?CallId=$call_id. For more
information, refer to Action URL.
ACDlogin
Log into the ACD system.
Note: When ACD authentication information is required, the valid
URI is: http(s)://<-
phoneIPAd-
dress>/servlet?key=ACDlogin&agentID=xxx&password=xxx. When
ACD authentication information is not required, the valid URI is: http
(s)://<phoneIPAddress>/servlet?key=ACDlogin.
ACDlogout Log out of the ACD system.
SWAP
Swap to the held call when there is an active call and a held call on
the phone.
SPLIT
Split the local conference call into individual calls. After the split, the
conference call ends, and other parties are held.
Note: It is not available for network conference.
[1]
X is the line key ID. For T57W/T48U/T48S/T48G, X=1-29; for T54W/T46U/T46S/T46G/T29G, X=1-27; for
T53W/T53/T43U/T27G, X=1-21; for T42U/T42G/T42S/T41P/T41S, X=1-15; for T40P/T40G/T23P/T23G, X=1-3; for
T21(P) E2, X=1-2.
Action URI Configuration
The following table lists the parameters you can use to configure action URI.

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