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Yealink SIP- T28P User Manual

Yealink SIP- T28P
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User Guide for the SIP-T28P IP Phone
26
4. Long press to lock the phone immediately when the phone is idle.
The LCD screen prompts Phone locked. and displays the icon .
You can specify the interval (in seconds) to automatically lock the phone instead of long
pressing .
To configure the interval of automatic phone lock via web user interface:
1. Click on Features->Phone Lock.
2. Enter the desired interval in the Phone Lock Time Out (0~3600s) field.
3. Click Confirm to accept the change.
Note
To unlock the phone, you must know the phone unlock PIN of the phone. The default
phone unlock PIN is 123.
The default interval is 0 second, that is, you need to long press to lock the phone.
The interval of automatic phone lock is configurable via web user interface only.

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Yealink SIP- T28P Specifications

General IconGeneral
Expansion module supportYes
Ethernet LAN (RJ-45) ports2
Keypad number of keys48
Voice codecsG.711, G.722, G.723.1, G.726
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Touchscreen-
Display resolution320 x 160 pixels
Lines quantity- lines
Phonebook capacity- entries
Number of VoIP accounts6
BluetoothNo
Security algorithmsHTTPS, SSL/TLS
AC adapter input voltage100 - 240 V
AC adapter output voltage5 V
Power consumption (typical)2.6 W
Operating relative humidity (H-H)10 - 95 %
Compliance industry standardsIEEE 802.3af
Number of handles included1 pc(s)
Weight and Dimensions IconWeight and Dimensions
Depth204 mm
Width273 mm
Height42 mm
Weight1050 g

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