Yealink SIP-T22P User Manual

Advanced Phone Features
115
indicated in three ways: a warning tone, a prompt message (including a voice mail icon)
on the LCD screen, and the MESSAGE key LED illuminates solid green. This will be
cleared when you retrieve all voice mails or delete them.
The MWI service is unsolicited for some servers, so the SIP-T22P IP phone only handles
the MWI messages sent from the server. But for other servers, the MWI service is
solicited, so the SIP-T22P IP phone must enable subscription for MWI.
Note
The MWI Subscription parameters you need to know:
Option
Description
Subscribe for MWI
Enable or disable a subscription for MWI service.
MWI Subscription Period
Period of MWI subscription. The IP phone sends a
refresh SUBSCRIBE request before initial SUBSCRIBE
expiration.
Subscribe MWI to Voice
Mail
Enable or disable a subscription to the voice mail
number for MWI service. To use this feature, you should
configure subscribe for MWI and the voice mail number
in advance.
Note
To configure subscribe for MWI via web user interface:
1. Click on Account.
2. Select the desired account from the pull-down list of Account.
3. Click on Advanced.
4. Select Enabled from the pull-down list of Subscribe for MWI field.
MWI service is not available on all servers. Contact your system administrator for more
information.
Whether the phone sends SUBSCRIBE messages for MWI service to the account or the
voice mail number depends on the server. Contact your system administrator for more
information.

Yealink SIP-T22P Specifications

General

DC-in jack	Yes
Expansion module support	No
Ethernet LAN (RJ-45) ports	2
Volume control	Digital
Keypad number of keys	32
Number of handles included	1 pc(s)
Power requirements	100 - 240 VAC, 5 VDC
Power consumption (typical)	2.6 W
Power consumption (PowerSave)	1.5 W
Voice codecs	G.722, G.723, G.726
Touchscreen	-
Display resolution	132 x 64 pixels
Lines quantity	- lines
Phonebook capacity	300 entries
Number of VoIP accounts	3
Security algorithms	HTTPS, SRTP
Flash memory	8 MB
Internal memory	32 MB
Password protection type	User
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 90 %
Handset type	Wired handset
Product type	IP Phone
Product color	Black

Weight and Dimensions

Depth	200 mm
Width	185 mm
Height	90 mm
Weight	770 g