Installation and Maintenance Manual - Aastra 5000 AMT/PTD/PBX/0058/4/6/EN
Description et caractéristiques d’un PBX 01/2011 Page 93
• CSTA CTI (1 to 2048 objects)
• V24 interactive voice mail server (1 to 16 accesses)
• Extended Q23 interactive voice mail server (1 to 64 accesses)
• IP XML interactive voice mail server (1 to 64 accesses)
• Sgml/ATDC XML (1 to 64 accesses)
3.8 Functional description Plate 9.1 to Plate 9.4)
An iPBX can be broken down functionally into several functional chains:
• Duplication (Aastra XD only)
• Command and processing unit
• Network and terminal interface
• Synchronisation
• Defence
• Power supply
• Ventilation.
3.8.1 Command and processing unit
The command and processing unit chain is ensured by the main card. It manages the
following features:
• Duplex and start logic (Aastra XD only)
• Data and voice switching
• Signal processing
• Voice mail server
• Defence (management of interface card statuses)
• Command management
• Synchronisation
3.8.1.1 Data and voice switching function
Communication switching is provided by a switching matrix acting as the crossroads for
the various data and voice messages.
The switching matrix is used to transfer a message, a signal (speech) or digitised data:
• From one expansion card to another expansion card
• From the signal processing module or the voice mail server module (voice auxiliaries)
of the main card to an expansion card.
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