Yealink SIP-T48G Administrator's Guide

Configuring Advanced Features
497
Parameters
Permitted Values
Default
0-Disabled
1-Enabled
Web User Interface:
None
Phone User Interface:
None
Multicast paging allows IP phones to send/receive Real-time Transport Protocol (RTP)
streams to/from the pre-configured multicast address(es) without involving SIP signaling.
Up to 10 listening multicast addresses can be specified on the IP phone.
Users can send an RTP stream without involving SIP signaling by pressing a configured
multicast paging key or a paging list key. A multicast address (IP: Port) should be
assigned to the multicast paging key, which is defined to transmit RTP stream to a group
of designated IP phones. When the IP phone sends the RTP stream to a pre-configured
multicast address, each IP phone preconfigured to listen to the multicast address can
receive the RTP stream. When the originator stops sending the RTP stream, the
subscribers stop receiving it.
Procedure
Configuration changes can be performed using the configuration files or locally.
Configuration File
<y0000000000xx>.cfg
Specify a multicast codec for the IP
phone to send the RTP stream.
Parameter:
multicast.codec
Configure the multicast IP address
and port number for a paging list
key.
Parameter:
multicast.paging_address.X.ip_ad
dress
Configure the multicast paging
group name for a paging list key.
Parameter:

Yealink SIP-T48G Specifications

General

Expansion module support	Yes
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Volume control	-
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
AC adapter input voltage	100 - 240 V
Number of handles included	1 pc(s)

Weight and Dimensions

Width	266 mm
Height	185 mm