Yealink SIP-T27G User Manual

Advanced Phone Features
175
The default channel is 0.
8. Click Confirm to accept the change.
Note
Using Multicast Paging
To send RTP stream via a multicast paging key when the receiver’s phone is idle:
1. Press the multicast paging key when the phone is idle.
The phone sends RTP to a preconfigured multicast address (IP: Port).
Both the sender’s and receiver’s phones play a warning tone and the receiver automatically
answers the multicast RTP session in the hands-free (speakerphone) mode.
The multicast paging key LED illuminates solid green.
The following figure shows a multicast RTP session on the phone:
2. You can do the following:
 To place the current multicast RTP session on hold, press the Hold soft key.
The priorities of listening addresses are predefined: 1 with the highest priority, 31 with the lowest.
Multicast listening addresses are configurable via web user interface only.
https://arttel.ru/
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Yealink SIP-T27G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Gold
Wall mountable	Yes
Display diagonal	3.66 \
Display resolution	240 x 120 pixels
RJ-9 ports quantity	2
USB 2.0 ports quantity	1
Voice codecs	CNG, G.711, G.722, G.723.1, G.726, G.729, G.729ab, VAD, iLBC
Dual-Tone Multi-Frequency (DTMF) modes	SIP info
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Bluetooth	-
Security algorithms	AES, MD5
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Volume control	Digital
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	210 mm
Width	265 mm
Height	170.5 mm