Yealink SIP-T20P User Manual

Advanced Phone Features
81
Paging Priority Active
You can enable or disable this feature to decide how the phone handles the incoming
multicast paging calls, when there is already a multicast paging call on the phone. If
enabled, the phone will ignore the incoming multicast paging call with a lower priority,
otherwise, the phone will play the incoming multicast RTP and place the previous
multicast paging call on hold. If disabled, the phone will automatically ignore all
incoming multicast paging calls.
To configure multicast listening addresses via web user interface:
1. Click on Contacts->Multicast Paging.
2. Select the desired value from the pull-down list of Paging Barge.
3. Select the desired value from the pull-down list of Paging Priority Active.
4. Enter the multicast IP address(es) and port number(e.g. 224.5.6.20:10008) which the
phone listens for incoming RTP multicast in the Listening Address field.
5. Enter the label in the Label field. Label will appear on the LCD screen when
receiving the RTP multicast.
6. Click Confirm to accept the change.
Note
Music on hold (MOH) is the business practice of playing recorded music to fill the
silence that would be heard by the callers who have been placed on hold. To use this
feature, you should specify a SIP URI pointing to a Music on Hold Server account, when
placing a call on hold, the phone will invite this SIP URI to the Music on Hold Server
account. The Music on Hold account automatically answers to the SIP INVITE messages
and immediately plays audio from some source located anywhere (LAN, Internet) to the
held party. Contact your system administrator for the SIP URI.
To configure music on hold server 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. Enter the SIP URI in the Music on Hold Server field.
5. Click Confirm to accept the change.
The multicast IP addresses range from 224.0.0.0 to 239.255.255.255.
The priorities of listening addresses are predefined: 1 with the highest priority, 10 with the
lowest priority.
Both the multicast paging sender and the receiver will play a warning tone when
pressing the multicast paging key.

Yealink SIP-T20P Specifications

General

Keypad number of keys	31
Speakerphone	Yes
Voice codecs	G.711, G.722, G.723.1, G.726
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Touchscreen	-
Lines quantity	2 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	2
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	200 mm
Width	185 mm
Height	90 mm
Weight	770 g