snippet: <p><b>Audio Sub Station W/Emergency Call Button</b></p><p>The IS Series is a network-based communication and all-in-one security control system featuring video entry security, internal communication, rescue assistance, paging, and bell/chime scheduling</p><p>All-in-one security control system.</p><p><p>The IS system can unlock doors remotely on a network, assist onsite visitors from an offsite phone, broadcast emergency announcements, and communicate using a standard or PC Master Station.</p>

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