Biamp Crowd Mics Network Administrator's Manual

is an audience engagement
Crowd Mics
system comprised of a mobile application and
form factor computer called the ATOM. The
application allows attendees of an event, such
as a lecture or a company meeting, to use their
phones as a wireless microphone. It also allows
text commenting viewable by a moderator as
well as live polling.
This document is intended to guide network
administrators and IT teams in successfully
integrating a Crowd Mics system within a
network environment.

ATOM Network Characteristics

The ATOM has the following external connections
for networking and A/V:
• Dual 100/1000Base-T Ethernet ports
• 2x HDMI connections (mirrored)
• Dual USB 3.0 ports (Type A)
• 1/8" unbalanced audio out
• Euroblock connector (balanced audio out)

Network Prerequisites

The ATOM and all mobile devices (moderator
and participants) must be connected to the same
WLAN, and must be in the same subnet address
range in order to receive multicast inter-device
discovery data.
• Each device must have an IP address
provided by the WLAN, assigned via DHCP
by default or via Crowd Mics configuration
software or API.
• IP addresses are based on IPv4 (IPv6 not
supported).
Network Administrator's Guide

Network Ports

Some communication ports might be locked by
default, typically for security reasons in routed
or restricted network segments such as public
wireless access for guests. For optimal operation
of Crowd Mics, ports in the table that follows
should be open and without restriction for the
duration of the Crowd Mics event.
Port TCP/UDP
443 TCP
8888 TCP
5353 UDP
1024-
UDP
65535
Network Connection and
Performance
Due to the potential that dozens of users will
connect to the same WLAN to participate in
an event, Crowd Mics should be deployed on a
professional, enterprise-grade wireless network
to ensure optimal reliability/connectivity during
an event.

Deployment

An open WLAN between participants and the
presenter is the recommended method to deploy
Crowd Mics. This entails the participants' and
moderator being on the same wireless network/
subnet and uninhibited communication on any
port.
Protocol
HTTPS
HTTP/Web Sockets
mDNS
RTP/SRTP