Yealink SIP-T28p manual

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Product specifications

Expansion module supportyes
Keypad number of keys48
Device lockyes
Colour of product Black
Handset typeWired handset
Speakerphone yes
Voice codecsG.711, G.722, G.723.1, G.726
Display LCD
Display resolution 320 x 160
Touchscreen -
Phone features
Lines quantity -
Call waitingyes
Distinctive ringyes
Speed dialingyes
Call holdyes
Call forwardingyes
Conference callyes
Call parkyes
Call pick upyes
Full duplex yes
Short Message Service (SMS)yes
Caller ID -
Phonebook capacity -
Number of VoIP accounts6
Bluetooth no
Ethernet LAN yes
Quality of Service (QoS) supportyes
DHCP clientyes
Wi-Fi no
Security algorithms HTTPS, SSL/TLS
Ports & interfaces
Ethernet LAN (RJ-45) ports 2
RJ-9 ports quantity2
Power over Ethernet (PoE) yes
Power consumption (typical) 2.6
AC adapter input voltage100 - 240
AC adapter output voltage5
Weight & dimensions
Width 273mm
Depth 204mm
Height 42mm
Weight 1050
Operational conditions
Operating relative humidity (H-H)10 - 95
Compliance industry standards IEEE 802.3af
Packaging content
Number of handles included 1