Galaxy Telecom Inc

Description

VoIP (Voice-over-IP) technology enables the real-time transmission of voice signals as packetized data over IP networks. In VoIP systems, analog voice signals are digitized and transmitted as a stream of packets over a digital data network. IP networks allow each packet to independently find the most efficient path to the intended destination, thereby best using the network resources at any given instant. The packets associated with a single source may thus take many different paths to the destination in traversing the network, arriving with different end-to-end delays, arriving out of sequence, or possibly not arriving at all. At the destination, the packets are re-assembled and converted back into the original voice signal. VoIP technology insures proper reconstruction of the voice signals, compensating for echoes made audible due to the end-to-end delay, for jitter, and for dropped packets. While standards for VoIP technology are emerging, they are still in flux. Even VoIP implementations that are standards-compliant may not necessarily interoperate with the standards-compliant products of other vendors. The ITU-T H.323 standard, for example, does not encompass all aspects of VoIP communications, and each vendor of VoIP technology can have their own variations of the overall VoIP network architecture and algorithms. Variations among VoIP products include the algorithms and implementations used to support dynamic bandwidth allocation, packet loss recovery, adaptive echo cancellation, and speech processing to deliver voice quality as high as possible. Galaxy Telecom made it its mission to build a next-generation, converged voice and data network from the ground-up. This approach enabled us to build a fully interoperational, standards-based IP network, which is build on the most up-to-date innovative IP technology and protocols. This gives Galaxy Telecom the ability to take advantage of any new developments in the field of VoIP at a speed, a cost and with flexibility not available to competitive service providers. Support of VoIP calls generally requires at least two VoIP gateways. Typically, a VoIP service provider would establish gateways (or relationships with other service providers and access to their gateways) in all countries or regions for which calls are to be originated and terminated. The resulting VoIP network is composed of the gateways, the local PSTN access to each gateway, and the IP network that links the gateways. Access to the local VoIP gateway for originating calls can be supported in a variety of ways. For example, the PBX of a business can be configured so that all international direct dialed calls are transparently routed to the nearest gateway. In this way, high-tariff calls are automatically supported by VoIP to obtain the lowest cost. These implementations require expensive customer premise equipment and costly service set-up, therefore they are usually only adopted by large enterprise customers with a network of distributed branch offices across the country or world.

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