Xy phony also provides:
•easy expansion and odification when introducing new services and technologies, to
guarantee high reliability,
•introduction procedures for new software parts or repairs with ini u service
interruptions. Software repairs are nor ally introduced without any loss of answered
calls. New software packages are introduced with a ini u service interruption,
independent of the size of the switching syste , to provide well defined procedures for
collecting of infor ation, restoring to nor al operation and introduction of repairs in
case of disturbances caused by so e errors.
The PX24U/PX24M Hybrid IP PBX syste verifies the integrity of its software at
regular basis.
TRAFFIC-HANDLING CAPACITY
The PX24U/PX24M Hybrid IP PBX e ploys a fully non-blocking switching atrix.
The advanced design incorporates state-of-the-art Digital Signal Processors that are
capable of executing illions of instructions a second. Such highly efficient use of the
syste 's resources, with the help of intelligent algorith s, 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 ay be IP trunk routes and/or
H.323 hard/soft phones with their own IP addresses. Further ore, the PX24U/PX24M
Hybrid IP PBX can register to ultiple gatekeepers si ultaneously. For an IP to IP
call, the edia is direct fro an H.323 endpoint to another, such a call does not use a
syste channel resource (i.e., PCM channel fro the switching atrix). The
PX24U/PX24M Hybrid IP PBX provides the address resolution and so e others
services according to the predefined profile of every registered endpoint. For such
calls, the PX24U/PX24M Hybrid IP PBX acts as a s all softswitch. There can be any
nu ber of si ultaneous 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 ay be IP trunk routes and/or
SIP hard/soft phones with their own IP addresses. Further ore, the PX24U/PX24M
Hybrid IP PBX can register to ultiple registrar si ultaneously. For an IP to IP call,
the edia is direct fro a SIP user agent to another, such a call does not use a syste
channel resource (i.e., PCM channel fro the switching atrix). For such calls, the
PX24U/PX24M Hybrid IP PBX acts as a s all softswitch. There can be any nu ber of
si ultaneous IP to IP, SIP calls.
Ports or interfaces ay be:
•blocked both-way calls
•blocked for inco ing calls only
•blocked for outgoing calls only
anually.
CALL ROUTING CAPABILITIES
The advanced routing algorith within the Telesis PX24U/PX24M Hybrid IP PBX
syste is carried out in four steps:
•First Step: Inco ing 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 sa e routing algorith is applied for both TDM and VoIP calls
Incoming A-Party Analysis (optional):
Inco ing A-Party (calling-party) analysis is the first (optional) step in Routing
Analysis. It is applied to each originating or inco ing interface. In order to facilitate
this analysis, an inco ing A-party analysis table is assigned to the originating user
(TDM or VoIP). The inco ing A-party analysis is done by analyzing the calling-party's
Nu ber (up to 32 digits), Category, Nature of Address (or type of nu ber), Nu bering
Plan, Presentation Status, Screening Status, etc. after which any or all of these
para eters ay 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 ain called-party analysis to truncate so e
called-party prefixes or reject certain addresses (destinations) altogether. Telesis has
developed pre-analysis in order to si plify the ain analysis, especially for when a
Telesis X1 syste services several operators in transit ode. Pre-analysis is applied to
as any as 16-digit called-party prefixes.
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