This station is discontinued and may no longer be supported. These instructions are provided to assist with operation and maintenance, and to guide upgrade paths.
Summary
If the IS-IPC’s primary function is to provide the telephone transfer feature to a local system, and does not connect to a network, the IS-IPC appears to restart occasionally, making the system unavailable for a few minutes.
Solution
The IS-IPC requires a constant network connection, even if it is just used for telephone transfers.