CyberData Corporation
3 Justin Court, Monterey, CA 93940
www.cyberdata.net
P 831.373.2601 | F 831.373.4193
RING CENTRAL CONFIGURATION GUIDE: SIP PAGING ADAPTER (SPA)
Doc. 931050B Page 6
3.0 Installation Options
Connecting your phone system to an analog overhead paging infrastructure doesn’t have to be
complicated. While CyberData offers numerous SIP-enabled IP paging endpoints with analog
outputs, the SIP Paging Adapter (SPA) was specifically designed as the best product for
interfacing IP phone systems such as RingCentral Cloud PBX to legacy analog overhead paging
infrastructures.
IP Audio Sourcing
IP Paging is accomplished with your choice of two audio sources:
• SIP
• Multicast
SIP is supported on RingCentral Cloud PBX by provisioning a SPA as an IP phone or a free
Paging Device. Users can dial a designated extension or a paging group extension, depending on
the business need, to play a stored message or make a live page. Provisioning as a free Paging
Device enables auto-answer live paging at no additional cost.
As a multicast-enabled paging endpoint, the SPA can receive a multicast page from up to 10
configurable and priority-based paging groups. Each paging group consists of a unique multicast
address and port number. Using a CyberData V3.1 Paging Server or a Polycom IP phone
supporting Polycom’s Group Paging feature, you can send multicast pages to the SPA, overhead
speakers, and multicast-enabled IP phones on the network at the same time.
Best of all, the SIP Paging Adapter provides the capability to use SIP and multicast
simultaneously for priority-based IP paging.
Analog Interface
Often, overhead paging is overlooked when migrating to a VoIP phone system from a legacy
analog phone system. You may be wondering how to approach an IP to analog paging solution.
CyberData recommends considering the following questions before implementing IP paging:
• How many paging groups or zones are needed?
• Do you want to page IP phones and overhead speakers at the same time?
• What is the input specification of the analog amplifier or zone controller connected to the
overhead speakers?
• Does the analog amplifier or zone controller require DTMF pass-through for analog zone
control?
• Does the analog amplifier or zone controller require contact closure to start the page?
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