Yealink SIP-T27P User Manual

Advanced Phone Features
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4. Press the OK soft key to accept the change or the Cancel soft key to cancel.
If you want to delete all paging groups, you can press the Del All soft key.
You can also configure the phone to use a default codec for sending multicast RTP stream via
web user interface.
To configure a default codec for multicast paging via web user interface:
1. Click on Features->General Information.
2. Select the desired codec from the pull-down list of Multicast Codec.
The default codec is G722.
3. Click Confirm to accept the change.
Note
Receiving RTP Stream
You can configure the phone to receive a Real Time Transport Protocol (RTP) stream from the
pre-configured multicast address(es) and channel(s) without involving SIP signaling. You can
specify up to 31 multicast addresses and channels that the phone listens to on the network.
Note
If G722 codec is used for multicast paging, the LCD screen will display the icon to indicate
that high definition voice is provided.
Default codec for multicast paging is configurable via web user interface only.
RTP stream is listened in the hands-free (speakerphone) mode by default. If you want to listen the
RTP stream using the engaged audio device (speakerphone, handset or headset), contact your
system administrator for more information.
Fixed volume to play RTP stream for specified paging group is configurable by your system
administrator.

Yealink SIP-T27P Specifications

General

Handset type	Wired handset
Product type	IP Phone
Product color	Cappuccino, Black
Backlight keypad	Yes
Volume control	Digital
Base station keys	36
Number of programmable keys	8
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Voice codecs	G.722, G.726, G.711, G.729, G.711a, G.729A, iLBC, G.729B
Display diagonal	3.66 \
Display resolution	240 x 120 pixels
Networking standards	IEEE 802.1p, IEEE 802.3af, IEEE 802.1x, IEEE 802.1Q
RJ-9 ports quantity	2
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	210 mm
Width	265 mm
Height	170.5 mm
Package depth	225 mm
Package width	300 mm
Package height	118 mm