Yealink SIP-T48U Administrator's Guide

Call Features
350
Call Features
This chapter shows you how to configure the call feature on Yealink phones.
Topics
Dial Plan Defined by Four Patterns (Old Dial Plan Mechanism)
Dial Plan Defined by Digit Map (New Dial Plan Mechanism)
Emergency Dialplan and Enhanced 911
Hotline
Off Hook Hot Line Dialing
Live Dialpad
Auto Redial
Recall Configuration
Speed Dial
Password Dial
Call Timeout
Anonymous Call
Call Number Filter
IP Address Call
Ignoring Incoming Calls
Off Hook Answering
Auto Answer
Anonymous Call Rejection
Call Waiting
Do Not Disturb (DND)
Multiple Call Appearances
Call Hold
Call Mute
Call Forward
Call Transfer
Conference
USB Recording
Multicast Paging
Dial Plan Defined by Four Patterns (Old Dial Plan Mechanism)
Dial plan is a string of characters that governs the way how the phones process the inputs received from the IP
phone’s keypads. You can use the regular expression to define the dial plan.
Yealink phones support four patterns:
l
Replace rule: is an alternative string that replaces the numbers entered by the user. Yealink phones support up
to 100 replace rules.
l
Dial now: is a string used to match numbers entered by the user. When entered numbers match the predefined
dial now rule, the phone will automatically dial out the numbers without pressing the send key. Yealink phones
support up to 100 dial now rules.
l
Area code: are also known as Numbering Plan Areas (NPAs). They usually indicate geographical areas in one
country. When entered numbers match the predefined area code rule, the phone will automatically add the area
code before the numbers when dialing out them. Yealink phones only support one area code rule.
l
Block out: prevents users from dialing out specific numbers. When entered numbers match the predefined block
out rule, the phone screen prompts “Forbidden Number”. Yealink phones support up to 10 block out rules.
You can configure these four patterns via the web user interface or auto provisioning. For replace rule and dial now,
you can select to add the rule one by one or using the template file to add multiple rules at a time.
Note: If you enable a new dial plan mechanism, old dial plan will be ignored. For more information on the new dial plan, refer
to Dial Plan Defined by Digit Map (New Dial Plan Mechanism).

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