Yealink SIP- T28P User Manual

User Guide for the SIP-T28P IP Phone
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5. Check the From and To fields, and then press the Send soft key.
To delete a text message:
1. Press Menu->Messages->Text Message->Inbox (Sentbox, Outbox or Draftbox).
2. Select the desired message and then press the Delete soft key.
3. Select Delete to delete the desired message.
The LCD screen prompts "Delete message?".
4. Press the OK soft key to delete this message or the Cancel soft key to cancel.
You can also delete all text messages by pressing the Delete soft key and then select
Delete All. For more information, refer to the above steps.
Note
You can also delete a specific message after retrieving by pressing the Delete soft key.

Yealink SIP- T28P Specifications

General

Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Keypad number of keys	48
Voice codecs	G.711, G.722, G.723.1, G.726
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Touchscreen	-
Display resolution	320 x 160 pixels
Lines quantity	- lines
Phonebook capacity	- entries
Number of VoIP accounts	6
Bluetooth	No
Security algorithms	HTTPS, SSL/TLS
AC adapter input voltage	100 - 240 V
AC adapter output voltage	5 V
Power consumption (typical)	2.6 W
Operating relative humidity (H-H)	10 - 95 %
Compliance industry standards	IEEE 802.3af
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	204 mm
Width	273 mm
Height	42 mm
Weight	1050 g