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Yealink SIP-T48G Administrator's Guide

Yealink SIP-T48G
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Getting Started
51
Generally, the administrator deploys phones in batch via auto provisioning, yet some
users would like to keep the personalized settings (e.g., ringtones, dial plan, time format
and DSS keys), after auto provisioning. These specific scenarios are applicable to
SIP-T48G/T46G/T42G/T41P/T40P/T29G/T27P/T23P/T23G/T21(P) E2/T19(P) E2/CP860 IP
phones running firmware version 80 or later. The following demonstrated specific
scenarios are taking SIP-T46G/T23G IP phones as example for reference.
Note
The following table lists the configuration parameters used to determine the phone
behavior for keeping user personalized settings:
Parameters
Permitted Values
Default
auto_provision.custom.protect
0 or 1
0
Description:
Enables or disables the IP phone to keep user personalized settings after auto
provisioning.
0-Disabled
1-Enabled
If it is set to 1 (Enabled), personalized settings configured via web or phone user
interface will be kept after auto provisioning.
Web User Interface:
None
Phone User Interface:
None
auto_provision.custom.sync
0 or 1
0
Description:
Enables or disables the IP phone to periodically (every 5 minutes) upload the
Yealink IP phones support FTP, TFTP, HTTP and HTTPS protocols for uploading the
MAC-local CFG file. This section takes the TFTP protocol as an example. Before
performing the following, make sure the provisioning server supports uploading.
If you are using the HTTP/HTTPS server, you can specify the way the IP phone uploads the
MAC-local CFG file to the provisioning server. It is determined by the value of the
parameter “auto_provision.custom.upload_method”.

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Yealink SIP-T48G Specifications

General IconGeneral
Expansion module supportYes
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Volume control-
Display diagonal7 \
Display resolution800 x 480 pixels
Lines quantity- lines
Phonebook capacity1000 entries
Number of VoIP accounts6
AC adapter input voltage100 - 240 V
Number of handles included1 pc(s)
Weight and Dimensions IconWeight and Dimensions
Width266 mm
Height185 mm

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