Yealink SIP-T48G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
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Scenario Operations II:
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=0
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 and 001565770984.cfg
files in sequence, and then updates configurations in the downloaded configuration
files orderly to the IP phone system. As the value of the parameter
“auto_provision.custom.protect” is set to 1, configurations in the
001565770984-local.cfg file saved on the IP phone are also updated.
The IP phone starts up successfully, and personalized settings are kept after auto
provisioning. When a user customizes feature configurations via web/phone user
interface, the IP phone will save the personalized settings to the
001565770984-local.cfg file on the IP phone only.
Note
If value of the parameter “auto_provision.custom.protect” is set to 0, the personalized
settings in the 001565770984-local.cfg file will be overridden after auto provisioning, no
matter what the value of the parameter “auto_provision.custom.sync” is.
Note
In this scenario, the IP phone will not upload the MAC-local.cfg file to provisioning server
and request to download the MAC-local.cfg file from provisioning server during auto
provisioning.
If a configuration item is both in the MAC-local.cfg file on the IP phone and Common CFG
file/ MAC-Oriented CFG file downloaded from auto provisioning server, setting of the
configuration item in the MAC-local CFG file will be written and saved to the IP phone
system.
If a configuration is modified via both web user interface and phone user interface, the
later modification will prevail.
For more information on the flowchart of keep user personalized configuration settings,
refer to Appendix E: Auto Provisioning Flowchart (Keep user personalized configuration
settings) on page 821.

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