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Corporate networking and services
The main purpose of ITV is to build independent communication infrastructure on the territory of Bulgaria providing high quality communications and services. Communication infrastructure is based on the DAMA and MF-TDMA satellite communication technologies integrated with terrestrial communication systems. Satellite communication network of ITV proposes all kind of network services like pure IP transfer, VoIP, IP telephony, video conferencing on the DVB platform, MPLS routing, Internet delivery, International gateways for data, telephony and private networking. Value added services are based on: web hosting servers, collocations e-mail hosting, e-mail gateways, e-government and e-business applications. Different media applications and a new service for Bulgaria: mobile SNG - serving mainly the Bulgarian media. 
ITV satellite network may be used as main communication infrastructure and also as a backup communication infrastructure serving already existing corporate networks and connectivity with high requirements for network reliability. ITV network is fully adaptive and may be integrated to any existing customers’s communication devices or existing communication infrastructure. Satellite communications permits to establish connectivity at random point on the territory of Bulgaria. This is very important for the regions where the conventional communications are not well developed. Satellite network backbone is places in all 26 main regional cities in the country. Aggregating part is a hybrid solution and is designed to fulfill all the customer’s needs and possibilities. Customers may be connected to the backbone with local leased lines, MAN connectivity, wireless WLL, ISDN, or directly with a small VSAT station. |
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ITV
denotes a VSAT network product to be operated via geostationary satellites
with transparent transponders. Based on SkyWAN® products of ND SatCom,
ITV network supports multimedia services (voice, video, LAN interconnection)
and offers the users the main benefit of VSAT networks which is the
direct access to the satellites' widespread coverage via small antennas
installed at the users' premises. MF-TDMA satellite channel access is
used to provide fully meshed connectivity between all network nodes
and to efficiently exploit the satellite channel capacity. The integration
of real time and non real time services is emphasized in the SkyWAN®
approach which is based on packet switching technology. The two generic
interfaces are Ethernet (LAN) and Frame Relay, where the latter provides
real time services in addition to non real time services. Because of
its ability to use satellite transmission capacity in the order of several
Mbit/s an SkyWAN® network is well suited for corporate networks serving
main locations of customers with intensive communication demands. The
network management is based on SNMP supporting the integration of SkyWAN®
into existing network environments and allowing additional services
such as scheduled allocation of bandwidth e.g. for video conferencing.
In summary the main characteristics of SkyWAN® are: