VLL -Data

Virtual Leased Line is a proprietary technology used by O-Tel to connect SME to O-Tel Switches via ADSL Broadband. VLL combines multiple broadband connections and creates a virtual tunnel, giving the point to point connection an SDSL (Diginet) type of transmission. Click for larger view If a client wishes to have a fast Internet connection, he can connect 4x...

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VLL -Voice

Virtual Leased Line is a proprietary technology used by O-Tel to connect SME to O-Tel Switches via ADSL Broadband. VLL creates a virtual tunnel, giving the point to point connection an SDSL (Diginet) type of transmission over an unstable ADSL line. Due to this facility, a VLL connection increases the transmission capacity of concurrency over the...

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Posted on Aug 20

Asterisk

Asterisk is a software implementation of a telephone private branch exchange (PBX) originally created in 1999 by Mark Spencer of Digium. Like any PBX, it allows attached telephones to make calls to one another, and to connect to other telephone services including the public switched telephone network (PSTN) and Voice over Internet Protocol (VoIP) services....

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Posted on Aug 16

ADSL

Asymmetric digital subscriber line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. It does this by utilizing frequencies that are not used by a voice telephone call.[1] A splitter - ormicrofilter - allows a single telephone connection to be used for...

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HSDPA

High-Speed Downlink Packet Access (HSDPA) is an enhanced 3G (third generation) mobile telephony communications protocol in the High-Speed Packet Access (HSPA) family, also coined 3.5G or 3G+, which allows networks based on Universal Mobile Telecommunications System (UMTS) to have higher data transfer speeds and capacity. Current HSDPA deployments support down-link speeds of 1.8, 3.6, 7.2, 14.0Mbit/s. Further speed increases...

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Posted on Aug 16

G.729

G.729 is an audio data compression algorithm for voice that compresses digital voice in packets of 10 milliseconds duration. It is officially described as Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear prediction (CS-ACELP).[1] Because of its low bandwidth requirements, G.729 is mostly used in Voice over Internet Protocol (VoIP) applications where bandwidth must be conserved. Standard...

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