Yealink CP920 Instruction Manual

Yealink CP920 User Guide
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During a recording, if there is insufficient free space (30 minutes or 10 minutes left) on the USB flash drive, the phone
will prompt you a message (XX minutes left for call recording). If no free space on the USB flash drive during recording,
the recording is stopped and saved in the USB flash drive automatically.
You can also view the storage space of the USB flash drive, and check the available recording time before recording.
Procedure
1. Navigate to Menu > USB Record > Storage Space.
Multicast Paging
Multicast Paging allows you to broadcast instant audio announcements to users who are listening to a specific mul-
ticast group on a specific channel.
The phone supports the following 31 channels:
l 0: Broadcasts are sent to channel 0. Note that the Yealink IP phones running old firmware version (old paging mech-
anism) can be regarded as listening to channel 0. It is the default channel.
l 1 to 25: Broadcasts are sent to channel 1 to 25. We recommend that you specify these channels when broadcasting
with Polycom IP phones which have 25 channels you can listen to.
l 26 to 30: Broadcasts are sent to channel 26 to 30. We recommend that you specify these channels when broad-
casting with Yealink IP phones running new firmware version (new paging mechanism).
Note
All IP phones in the multicast paging group must be deployed in the same subnet since a broadcast is used. The phone can
only send/receive broadcasts to/from the listened channels. Other channels’ broadcasts will be ignored automatically by
the IP phone.
Topics
Sending Multicast Paging
Receiving Multicast Paging
Managing a Paging Call
Sending Multicast Paging
Your phone supports up to 31 groups for paging. You can assign a label to each group to identify the phones in the
group, such as All, Sales, or HR.
Note
Multicast RTP is one way only from the sender to the multicast address(es) (receiver). For outgoing RTP multicasts, all other
existing calls on the phone will be placed on hold.
Topics

Yealink CP920 Specifications

General

Control type	Buttons
Display type	LCD
Product type	IP conference phone
Voice codecs	CNG, G.722, G.722.1C, G.723, G.726, OPUS, VAD, iLBC
Certification	CE
Product color	Stainless steel
Built-in display	Yes
Display diagonal	3.1 \
Display resolution	248 x 120 pixels
Phonebook capacity	1000 entries
Security algorithms	HTTPS
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet interface type	Fast Ethernet
Microphone direction type	Omnidirectional
AC input voltage	100 - 240 V
USB version	2.0
Storage temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	10 - 90 %
Harmonized System (HS) code	85176990

Weight and Dimensions

Depth	298 mm
Width	307.8 mm
Height	66.9 mm
Package depth	364 mm
Package width	336 mm
Package height	112 mm