Yealink VCM38 Administrator's Guide

| Configuring Network Settings | 90
Some issues, such as the video packet loss and delay may cause the video images distorted and
unclear. To ensure acceptable visual quality for video, video packets emanated from the system should be
configured with a high transmission priority.
Data QoS
To ensure better presentation, data packets (PC content) emanated from the system should be configured
with a high transmission priority. DSCPs for audio, video and data packets can be specified respectively.
• Configuring QoS
Configuring QoS
Procedure
1. Do one of the following:
• On your web user interface, go to Network > Advanced > QoS.
• On your VCS: go to More > Settings > Network Setting > Wired Network > Advanced Network >
QoS.
For VP59, tap > Settings > Network Setting > Wired Network > Advanced Network > QoS.
•
On your CTP20/CTP18, tap > Settings > Network Setting > Host Network > Advanced
Network > QoS.
2. Configure and save the following settings:
Parameter Description Configuration Method
QoS Enable
Enable or disable the QoS
feature.
Note: the default value is Off.
If you change this parameter, the
system will reboot to make the
change take effect.
Web user interface
Endpoint
CTP20/CTP18
Audio Priority
Configure the DSCP
(Differentiated Services Code
Point) for audio packets.
Note: the default value is 63.
The greater the number is,
the higher the priority is. If you
change this parameter, the
system will reboot to make the
change take effect.
Web user interface
Endpoint
CTP20/CTP18
Video Priority/
Video Priority (0-63)
Configure the DSCP
(Differentiated Services Code
Point) for video packets.
Note: the default value is 34.
The greater the number is,
the higher the priority is. If you
change this parameter, the
system will reboot to make the
change take effect.
Web user interface
Endpoint
CTP20/CTP18

Yealink VCM38 Specifications

General

Type	Conference microphone
Noise reduction	Yes
Microphone frequency	100 - 16000 Hz
Microphone sensitivity	-45 dB
Microphone pick-up range	6 m
Number of microphone arrays	8
Maximum sound pressure level (1kHz)	100 dB
Device interface	RJ-45
Connectivity technology	Wired
Maximum operating distance	40 m
Mounting type	Ceiling
Product color	Silver
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	5 - 90 %
Number of products included	1 pc(s)
Harmonized System (HS) code	85181000
Power source	DC/PoE
Sustainability certificates	CE, Federal Communications Commission (FCC), REACH, RoHS

Weight and Dimensions

Width	127.3 mm
Height	66.3 mm