Introduction Call Handoff Limitations and Synchronization
ShoreTel IP Phone 930D Planning and Installation Guide 15
An IP930D base supports the same networking features as other ShoreTel IP phones, including
DHCP, VLANs, LLDP, and 802.1x.
In a multi-base (multicell) environment, multicast IP packets are used to communicate among bases.
Therefore, all bases in a single airspace should be on the same IP subnet (this avoids complex
multicast routing configurations).
Call Handoff Limitations and Synchronization
Call handoff is not supported between base stations. Call handoff is supported across repeaters that
are associated with the handset’s registered base station.
Because base-to-base-handoff is not supported, the maximum continuous coverage area of any
installation will be limited to the coverage that can be obtained by using a combination of a base and its
associated repeaters. For this reason, this system is best suited for a single air-space (such as one or
two floors of an office building) and is not appropriate for a campus environment where handsets need
to operate across buildings.
DECT radio synchronization is required between the bases and the associated repeaters that make up
a system. Synchronization between bases and repeaters is done entirely over the air using DECT
spectrum. See Synchronization on page 48 for more information.
Understanding System Management
Managing the IP930D generally requires that you use the same approach and software tools you
would use to manage other ShoreTel IP Phones. Additionally, a web-based interface called
ShoreTel IP930D Manager allows you to:
Verify and modify system configuration
Reset a base remotely
Enable handset and repeater registration
Check upgrade status for components
See which components are currently in use
See Understanding System Management on page 51 of the Reference Material chapter for more
information about ShoreTel IP930D Manager.