Yealink SIP-T48G Administrator's Guide

About This Guide
vii
This section describes the changes to this guide for each release and guide version.
This version is updated to incorporate CP860 IP phones. Documentations of the newly
released SIP-T40P IP phones have also been added. The following sections are new for
this version:
 Conventions Used in Yealink Documentations on page v
 Wi-Fi on page 117
Major updates have occurred to the following sections:
 Expansion Module on page 16
 Power Indicator LED on page 97
 Contrast on page 104
 Backlight on page 109
 Bluetooth on page 114
 Auto Answer on page 251
 Session Timer on page 296
 Dialog Info Call Pickup on page 359
 Methods of Transmitting DTMF Digit on page 383
 Busy Lamp Field (BLF) on page 445
 Multicast Paging on page 497
 Action URI on page 554
 VPN on page 602
 Quality of Service on page 625
 NAT Traversal on page 630
 IPv6 Support on page 647
 Distinctive Ring Tones on page 664
 Viewing Log Files on page 749
 Troubleshooting Solutions on page 772
 Appendix F: Configurations Defined Never be Saved to <MAC>-local.cfg file on
page 822

Yealink SIP-T48G Specifications

General

Expansion module support	Yes
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Volume control	-
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
AC adapter input voltage	100 - 240 V
Number of handles included	1 pc(s)

Weight and Dimensions

Width	266 mm
Height	185 mm