Yealink SIP-T48U Administrator's Guide

Table of Contents
13
Call Forward in Phone Mode Configuration
399
Call Forward in Custom Mode Configuration
403
Call Forward Synchronization for Server-side Configuration
407
Call Transfer
409
Call Transfer Configuration
409
Transfer Mode for Dsskey Configuration
410
Conference
411
Conference Type Configuration
411
Local Conference Configuration
411
Network Conference Configuration
412
USB Recording
413
USB Recording Configuration
413
Multicast Paging
414
Multicast Paging Group Configuration
415
Multicast Listening Group Configuration
416
Multicast Paging Settings
416
Multicast Paging Settings Configuration
417
Advanced Features
420
Call Pickup
420
Directed Call Pickup
420
Directed Call Pickup Configuration
420
Group Call Pickup
422
Group Call Pickup Configuration
422
Dialog Info Call Pickup
423
Dialog Info Call Pickup Configuration
424
Call Completion
424
Call Completion Configuration
427
Example: Using Call Completion
427
Call Park and Retrieve
427
Call Park and Retrieve Configuration
427
Example: Setting Call Park and Retrieve in FAC Mode
429
Example: Setting Call Park and Retrieve in Transfer Mode
429
Automatic Call Distribution (ACD)
430
ACD Key Configuration
430
ACD Configuration
430
Example: Setting ACD
432
Busy Lamp Field
432
BLF Key Configuration
433
BLF List Configuration
433
State Indicator of Remote Line
435
BLF/BLF List Subscription
436
BLF/BLF List Subscription Configuration
437
Visual and Audio Alert for Monitor Lines
439
Visual and Audio Alert for BLF Lines Configuration
439

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