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As soon as a SIP call is received by the GSC3516, first checks if the Caller ID number is allowed on the Whitelist and then
answers automatically.
Notes
GSC3516 is an intercom system and auto-answers all whitelisted numbers.
By default, GSC3516 plays a Warning tone when auto answering incoming calls, this warning tone can be disabled under
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Multicast Paging Application
Multicast paging is an approach to let different SIP users to listen for paging calls from a common multicast IP address. In
multicast page call, an audio connection will be set up from sender to receiver, but the receiver will be only able to receive
audio, a one-way communication. The 2 entities, Sender/Receiver, must be located on same LAN (same broadcast domain).
To receive multicast page, GSC3516 must be well configured to listen to the right address and port. The configuration is
located under Phone Settings → Multicast/Group Paging. Up to 10 listening addresses are supported with priority levels
from 1 to 10.
Note: Multicast paging configuration requires a reboot to take effect.
In above screenshot, Listening Address "237.11.10.11:6767" with label "Sales" has the highest priority.
Users can enable "Paging Priority Active" option (under Multicast Paging tab) to accept incoming paging calls during active
multicast paging. The paging call with higher priority than active one will be accepted.
Figure 12: Whitelisted Devices
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Call Settings, "Play Warning Tone for Auto Answer Intercom".
Figure 13: Multicast Paging Listening Addresses
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