Yealink SIP-T48G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
536
Event
Description
power on.
Open Call Waiting
When the IP phone enables the call waiting.
Close Call Waiting
When the IP phone disables the call waiting.
Headset
When the IP phone presses the HEADSET key (not
applicable to CP860 IP phones).
Handfree
When the IP phone presses the Speakerphone key (not
applicable to CP860 IP phones).
Cancel Call Out
When the IP phone cancels an outgoing call in the
ring-back state.
Remote Busy
When an outgoing call is rejected.
Call Remote Canceled
When the remote party cancels the outgoing call in the
ringing state.
An HTTP or HTTPS GET request may contain variable name and variable value,
separated by “=”. Each variable value starts with $ in the query part of the URL. The
valid URL format is: http(s)://IP address of server/help.xml?variable name=$variable
value. Variable name can be custom by users, while the variable value is pre-defined.
For example, a URL “ http://192.168.1.10/help.xml?mac=$mac ” is specified for the event
Mute, $mac will be dynamically replaced with the MAC address of the IP phone when
the IP phone mutes a call.
The following table lists pre-defined variable values.
Variable Value
Description
$mac
The MAC address of the IP phone.
$ip
The IP address of the IP phone.
$model
The IP phone model.
$firmware
The firmware version of the IP phone.
$active_url
The SIP URI of the current account when the IP phone
places a call, receives an incoming call or establishes
a call.
$active_user
The user part of the SIP URI for the current account
when the IP phone places a call, receives an incoming
call or establishes a call.
$active_host
The host part of the SIP URI for the current account
when the IP phone places a call, receives an incoming
call or establishes a call.
$local
The SIP URI of the caller when the IP phone places a

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