Yealink VCM38 Administrator's Guide

| Configuring Call Settings | 214
Configuring Additional Audio Call
If you enable this feature, when the number of video calls reaches the limit (except for 24-way video calls)
in the call, additional 5 users can still place audio calls to join the call. Otherwise, additional 5 users cannot
place audio calls to join the call. This feature is disabled by default.
About this task
For example, for VC800 with 16-way license, if you disable additional audio call, when you create a call,
only 16 participants can place video calls to join your call, the 17th participant cannot join the call. This
feature is not applicable to the third generation VCS devices running in Yealink Cloud system mode.
Procedure
1. On your web user interface, go to Setting > Call Features > In-Call Settings.
2. Configure and save the following settings:
Parameter Description Configuration Method
Additional Audio Call
Enable or disable the additional
audio call.
Default: Disabled.
Web user interface
Selecting the Multi-Party Resources
If you are during a P2P call, you can invite a third party using its own capacity (built-in MCU) or the server
VMR to initiate a conference. This feature is not applicable to third generation VCS devices.
About this task
The systems can select multi-party resources by the following:
Prerequisites Types of multiparty resources Multiparty resources used
when inviting the third party
VC500/VC200/ VP59 uses Cloud
account or YMS account with
priority to make a P2P call.
VC880/VC800 system (without an
imported multipoint license) uses
Cloud account or YMS account to
make a P2P call.
Upgrade to be a server VMR
conference first, if so, use the
Endpoint own capacity to initiate
a conference call
VC880/VC800 system (with an
imported multipoint license) uses
any call type (Cloud/YMS/SIP/
H.323/IP) to make a P2P call.
Uses the capacity to initiate a
conference call
PVT980/PVT950 system uses
any call type (Cloud/YMS/SIP/
H.323/IP) to make a P2P call.
Auto
Uses the capacity to initiate a
conference call
Any call type (Cloud/YMS/SIP/
H.323/IP) is used to make a P2P
call
Endpoint Built-in MCU Uses the capacity to initiate a
conference call

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