Xymphony also provides:
• easy expansion and modification when introducing new services and technologies, to
guarantee high reliability,
• introduction procedures for new software parts or repairs with minimum service
interruptions. Software repairs are normally introduced without any loss of answered
calls. New software packages are introduced with a minimum service interruption,
independent of the size of the switching system, to provide well defined procedures for
collecting of information, restoring to normal operation and introduction of repairs in
case of disturbances caused by some errors.
The PX24U/PX24M Hybrid IP PBX system verifies the integrity of its software at
regular basis.
TRAFFIC-HANDLING CAPACITY
The PX24U/PX24M Hybrid IP PBX employs a fully non-blocking switching matrix.
The advanced design incorporates state-of-the-art Digital Signal Processors that are
capable of executing millions of instructions a second. Such highly efficient use of the
system's resources, with the help of intelligent algorithms, leaves no possibility that an
overload condition will arise.
The PX24U/PX24M Hybrid IP PBX allows hundreds of H.323 endpoints to be
registered into its integrated gatekeeper. These endpoints may be IP trunk routes and/or
H.323 hard/soft phones with their own IP addresses. Furthermore, the PX24U/PX24M
Hybrid IP PBX can register to multiple gatekeepers simultaneously. For an IP to IP
call, the media is direct from an H.323 endpoint to another, such a call does not use a
system channel resource (i.e., PCM channel from the switching matrix). The
PX24U/PX24M Hybrid IP PBX provides the address resolution and some others
services according to the predefined profile of every registered endpoint. For such
calls, the PX24U/PX24M Hybrid IP PBX acts as a small softswitch. There can be any
number of simultaneous IP to IP, H.323 calls.
The PX24U/PX24M Hybrid IP PBX allows hundreds of SIP user agents to be
registered into its integrated registrar. These endpoints may be IP trunk routes and/or
SIP hard/soft phones with their own IP addresses. Furthermore, the PX24U/PX24M
Hybrid IP PBX can register to multiple registrar simultaneously. For an IP to IP call,
the media is direct from a SIP user agent to another, such a call does not use a system
channel resource (i.e., PCM channel from the switching matrix). For such calls, the
PX24U/PX24M Hybrid IP PBX acts as a small softswitch. There can be any number of
simultaneous IP to IP, SIP calls.
Ports or interfaces may be:
• blocked both-way calls
• blocked for incoming calls only
• blocked for outgoing calls only
manually.
CALL ROUTING CAPABILITIES
The advanced routing algorithm within the Telesis PX24U/PX24M Hybrid IP PBX
system is carried out in four steps:
• First Step: Incoming A-Party Analysis,
• Second Step: B-Party (called-party) Pre-Analysis
• Third Step: B-Party (called-party) Main Analysis
• Fourth Step: Outgoing A-Party Analysis
The same routing algorithm is applied for both TDM and VoIP calls
Incoming A-Party Analysis (optional):
Incoming A-Party (calling-party) analysis is the first (optional) step in Routing
Analysis. It is applied to each originating or incoming interface. In order to facilitate
this analysis, an incoming A-party analysis table is assigned to the originating user
(TDM or VoIP). The incoming A-party analysis is done by analyzing the calling-party's
Number (up to 32 digits), Category, Nature of Address (or type of number), Numbering
Plan, Presentation Status, Screening Status, etc. after which any or all of these
parameters may be translated and then selected for a called-party pre-analysis table.
Called-Party Pre-Analysis (optional):
The Pre-Analysis is carried out prior to the main called-party analysis to truncate some
called-party prefixes or reject certain addresses (destinations) altogether. Telesis has
developed pre-analysis in order to simplify the main analysis, especially for when a
Telesis X1 system services several operators in transit mode. Pre-analysis is applied to
as many as 16-digit called-party prefixes.
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