Comkar-10000 High Capacity Digital Switching Exchange
General Description:
The structure of Comkar-10000 system is based on newest technology, looking to the future and using 22 years of experience in design and implementation of small and medium range digital switches . The normal capacity of the Exchange is up to 15K extendable to 60K ports and due to its complete modularity and high flexibility , it can be configured as local exchange , tandem or any combination . This fully distributed processing system is in service in Iran telecommunication network .
*
Technical Summary
Load
sharing and duplication mechanisms , which are the intrinsic capabilities
of this distributed processing and resource management system , promote
its flexibility and reliability to
high standards .
A
matrix of processors in cooperation with 2K×2K switch and high speed
links for interprocess communications serves the subscriber modules , the
duplication mechanism , tones , announcements , conferencing , local test
hardware and the call processing procedures . The voice channel pools
provide a non-blocking medium for digital as well as analog subscribers or
trunks . The structure of trunks' subsystems is such that different
network interfaces can easily be deployed .
Through
a matrix of 16K×16K switch, which is designed to be the load sharing
central switch, all
subsystems are connected together and as a whole
has
the capability of handling 4000 Erlang traffic with a
BHCA of 100000 .
*
Interfaces
The
integral parts of the digital exchange supports the following signalling
techniques and interfaces recommended by ITU :
|
I ) Analog line ( ordinary and coinBox ) II ) Digital Trunk ( E1,G.703 ) III ) SS#7 , CAS and R1 IV ) ISDN (PRI , BRI ) |
*
Features and facilities
I
) Fully Load sharing and duplication mechanism are provided .
II
) The display of system status is designed to monitor operational
integrity of
processors, switching networks, subscriber and network access units
.
III
) DTMF capability for all subscribers .
IV
) Administration in following
areas :
*
Subscriber administration
*
Routing administration
*
Charging administration
*
Traffic administration
*
R1 register signalling to support CAMA charging
*
Subscriber special services
|
a
) Call forward (different types) b
) Call transfer c
) Call waiting d
) Abb.dialing e
) Hot line (delayed , immediate ) f
) Call conference g ) Different features , configurable by
subscribers |
h
) Caller ID i
) Don’t disturb j
) Home metering k
) Logical port numbering l
) Call hunting m
) Malicious call n
) Wake-up service |
*
Maintenance
I
) Automatic line and trunk test .
II
) Periodic supervision of control modules .
III
) Test scheduling via O&M console
.
IV
) The operation and maintenance console is implemented in windows
environment. It is
very user friendly for the system operators .
V
) A unique technique of continuous monitoring of all voice links for
continuity .
