Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of network terminating interface – subscriber trunk...
Reexamination Certificate
2005-01-31
2011-11-08
Tsang, Fan (Department: 2614)
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Testing of network terminating interface, subscriber trunk...
C379S032010, C379S212010, C370S465000, C370S352000
Reexamination Certificate
active
08054947
ABSTRACT:
In a PBX environment, a middleware module abstracts communication cards so that the plurality of channels associated therewith are grouped for efficiency. The middleware module recognizes unoperational channels, and restarts the hardware associated with the channels as well as allowing conferencing and transferring calls when the PBX switch does not support same. Preferably, for outgoing calls, the middleware adapter controls the state of interfaces for all hardware adapters and tries to deliver calls over active interfaces. In case of failure, the middleware adapter investigates and makes a decision if the call should be delivered over another adapter. In this way, redundant and highly available solutions are implemented transparent to application and interface drivers. For incoming calls, the middleware adapter accepts calls from all hardware adapters and presents these calls to applications as if these calls are issued by one adapter.
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Partial European Search Report in Application No. EP 05 25 0528 issued Feb. 11, 2008.
Mielich Rainer
Startsev Vladimir
Chaclas George N.
Edwards Angell Palmer & & Dodge LLP
Eicon Networks Corporation
Sharifzada Ibraham
Tsang Fan
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