Yealink SIP-T48G Administrator's Guide

Getting Started
55
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SIP-T23G IP phone MAC: 001565770984
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Provisioning server URL: tftp://192.168.1.211
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Place the target firmware to the root directory of the provisioning server.
The old firmware version supports keeping personalized settings and generating a
<MAC>-local.cfg file. To keep user personalized settings after auto provisioning and
upgrade, you need to configure the value of the parameter
“auto_provision.custom.protect” to 1 in the configuration file.
Do one of the following operations:
Scenario Operations I:
1. Add/Edit the following parameters in the y000000000044.cfg file or
001565770984.cfg file you want the IP phone to download:
auto_provision.custom.protect=1
auto_provision.custom.sync=1
firmware.url = tftp://192.168.1.211/44.80.0.60.rom
2. Trigger the IP phone to perform the auto provisioning process. For more information
on how to trigger auto provisioning process, refer to Triggering the IP Phone to
Perform the Auto Provisioning section in Yealink_SIP-T2_Series_T19(P)
E2_T4_Series_CP860_IP_Phones_Auto_Provisioning_Guide .
During auto provisioning, the IP phone first downloads the y000000000044.cfg file,
and then downloads firmware from the root directory of the provisioning server.
The IP phone reboots to complete firmware upgrade, and then starts auto
provisioning process again which is triggered by phone reboot (the power on mode
is enabled by default). It downloads the y000000000044.cfg, 001565770984.cfg and
the 001565770984-local.cfg file in sequence from the provisioning server, and then
updates configurations in these downloaded configuration files orderly to the IP
phone system. The IP phone starts up successfully, and the personalized settings in
the 001565770984-local.cfg file are kept after auto provisioning.
When a user customizes feature configurations via web/phone user interface, the IP
phone will save the personalized configuration settings to the
001565770984-local.cfg file on the IP phone, and then periodically (every 5 minutes)
upload this file to the provisioning server.
Note
If a configuration item is both in the downloaded MAC-local.cfg file and Common CFG
file/ MAC-Oriented CFG file, setting of the configuration item in the MAC-local CFG file
will be written and saved to the IP phone system.

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