ASCOM Ascotel 2025 System Manual page 81

ascom Ascotel 2025/2045/2065
Abbr. Term
– Overflow
PISN Private Integrated Services
Network
– PISN subscriber
PINX Private Integrated Services
Network eXchange
PNP Private Numbering Plan
– Private leased-line network
QSIG / QSIG / PSS1 protocol
PSS1
TON Type of
number
– Transit PINX
– Source PINX
– Virtual PBX
– Destination PINX
1.26 Networking the Systems
Explanation
If the chosen line of a ® PINX is not available due to overloading or
due to a defect, the connection pending is set up via an alternative
path determined by the configuration.
Private network based on the ISDN standard in which all the con-
nected subscribers can communicate with one another as internal
subscribers. This applies to both voice traffic and to ISDN-based
data traffic.
• Subscriber in a different ® node of a private network
• Category in the internal numbering plan used to replicate the
subscribers in the private network
® node of a ® PISN, usually a PINX is an ISDN PBX.
• Internal numbering plan of a PBX or PINX
• Service offered by the network provider. Essentially a virtual
counterpart to a PBX numbering plan. Most important compo-
nent of a ® virtual PBX.
• Parameter value of parameter ® NPI
Private network implemented using dedicated lines. In the system
configuration we need to differentiate between the private leased-
line network and the public network.
ECMA-standardized signalling protocol used for networking sev-
eral ® PINXs. Now standardized worldwide
(ISO / IEC) under the name PSS1 (Private Signalling System 1)
• Parameter value of the "Protocol" trunk group parameter. The
system supports two versions of the QSIG / PSS1 protocol: QSIG
(ETSI, 2nd edition) and QSIG / PSS1 ISO.
Parameter used for classifying a call number: Parameter values, if
the call number corresponds to a NPI = E.164: unknown / sub-
scriber / national / international. Parameter values, if the call
number corresponds to a NPI = PNP: unknown / level 0 / level 1 /
level 2
A PINX acts as a transit PINX for the duration of a connection if it
routes that connection from one PINX to another PINX.
A PINX acts as a source PINX for the duration of a connection if the
connection was set up by one of its subscribers.
Network provider offer which comprises a ® PNP and various ISDN
supplementary services. Also known under the name ® Centrex.
With a virtual PBX the network provider is able to offer his custom-
ers the functionality of a PBX.
A PINX acts as a destination PINX for the duration of a connection
if the connection's destination subscriber is one of its subscribers.
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