Specifications

Document 90-00067 A Algo Communication Products Ltd [phone]
2014-09-12 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 12 www.algosolutions.com
multicast addresses pre-populated in the table will work in most
cases.
To enable multicast monitoring in the other speakers, go to the web
interface for each speaker and again navigate to the Basic Settings
 Multicast tab. This time though, choose multicast mode
“Slave/Receiver”. There is no need to select a zone as the speaker
will automatically monitor the “All Call” zone IP address.
The page pre-announce tone is generated from the SIP/Master. The
following options are valid for each multicast slave speaker:
 Increase or Decrease Speaker Volume
 Enable Ambient Noise Monitoring (speaker volume adapts to
background noise)
Talkback can only be used for the SIP/master speaker. When paging
with talkback enabled, only the area near the SIP/master speaker is
covered for talkback. The microphones in the multicast/slave
speakers are disabled except for ambient noise monitoring.
SIP Paging Multiple Speakers (Using
Individual SIP extensions)
In some cases it may be desirable for every speaker to have a SIP
extension. Multicast may still be used to page multiple speakers but
each speaker can also be called individually or generate a call when
appropriately configured.
A speaker configured as a SIP Multicast Slave will give its highest
priority to a page using its SIP extension.
Communication Servers with the capability of dialling many SIP
extensions simultaneously for paging may be able to create zones by
call hunt groups and also page telephone speakers in conjunction
with overhead speakers.
Multicast Page Zones
The 8188 SIP Ceiling Speaker currently supports nine separate
multicast “zones” defined by the multicast IP addresses.
Somewhat arbitrarily, these zones are defined as below but may be
used in other ways. The important consideration is that there is a