When querying Avaya MIBs, IP Availability Manager is highly successful at identifying VoIP-enabled devices. When querying Cisco or Nortel MIBs, IP Availability Manager is less successful at identifying VoIP-enabled devices. The degree of success depends on two factors:
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The amount of VoIP-related information provided by the MIB
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The type of device (general purpose or special purpose) running the VoIP application
Accordingly, the VoIP topology collection set created for an Avaya-only managed network will consist of just VoIP-enabled devices—and the Chassis, Card, IP, and SNMPAgent objects associated with the devices.
For a Cisco-only, Nortel-only, or Cisco/Nortel-only managed network, the VoIP topology collection set will consist of VoIP-enabled devices and most probably other devices that are not VoIP-enabled—and the Chassis, Card, IP, and SNMPAgent objects associated with the devices.