Yealink SIP- T28P User Manual

User Guide for the SIP-T28P IP Phone
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2. Enter the time between 1 and 14 (seconds) in the Time-Out for Dial-Now Rule field.
3. Click Confirm to accept the change.
Note
Area codes are also known as Numbering Plan Areas (NPAs). They usually indicate
geographical areas in a country. This feature is necessary when dialing a phone
number outside the code area. For example, an area code is configured as "Code: 0592,
Min Length: 1, Max Length: 15". When you dial out the number "56789" (the length of the
number is between 1 and 15), the phone will add the area code and dial out the
number "059256789". You can only configure one area code rule on your phone.
To configure the area code via web user interface:
1. Click on Settings->Dial Plan->Area Code.
2. Enter the desired values in the Code, Min Length (1-15) and Max Length (1-15)
fields.
3. Enter the desired line ID in the Account field or leave it blank.
Delay time for dial-now rule is configurable via web user interface only.

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