VoIP Access
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Mediatrix VoIP Access Device
The Mediatrix 2102 features voice prioritization over data and innovative IP technology to connect up to two residential phones or fax machines and a PC directly to a broadband modem - without the need for an external router. The Mediatrix 2102 VoIP access device is equipped with one FXS port and two 10/100 BaseT Ethernet ports and is the ideal platform for service providers looking to deploy cost-effective residential IP telephony. There are few Features:
* IP connectivity for analog phones and faxes
* PSTN-quality voice over IP networks
* Deployable in SIP VoIP networks
* Automatic firmware and configuration file download
* Configuration file encryption
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Hosted IP Telephony and VoIP Access
Telecom carriers have been launching IP-based services to meet enterprises' needs of better business communication technologies such as hosted Internet Protocol (IP) telephony services in most countries of Europe, Middle East and Africa (EMEA). According to a recent study conducted by research firm Frost & Sullivan, VoIP access, or VoIP trunking, is equally popular as it offers service providers with an opportunity to utilize VoIP technologies in order to penetrate the customer base of premise-based solutions. The major driver for IP telephony implementation is no longer limited to the reduction of long-distance telephony tariff; in addition, lower cost of ownership and reduction of risks are the main reasons driving enterprises to adopt hosted IP telephony services," noted Frost & Sullivan industry analyst. Shomik Banerjee. "Factors including changing market dynamics that necessitate effective communication infrastructure in enterprises and fast-paced technological advancements that fossilize existing technology, demand flexible and easily upgradeable solutions such as hosted IP telephony .
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VoIP access fee decision delayed
A much-anticipated ruling to determine whether voice-over-IP providers have to pay incumbents to connect to their networks has been delayed, thanks to a decision from Level 3 Communications to withdraw its request for the FCC to prevent imposing access fees on Internet telephony. Level 3 had waited 364 days after filing its petition for forbearance to get a decision, but apparently picked up the scent of changing winds with the FCC, following the departure of VoIP champion and former FCC Chairman Michael Powell a week earlier. Rumors had swirled throughout Washington that a Powell-less FCC would rule against the Level 3 petition, paving the way for incumbent carriers to charge access fees to VoIP providers to originate and terminate calls to their customers. That would drive up the cost of service and wipe out a key advantage to Internet telephony.
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VoIP Access to Global SS7 Network
VoIP service providers a new way to exchange voice traffic with traditional telecommunications carriers. The company's new SIP-7 (Session Initiation Protocol 7) Services allow VoIP providers to connect to VeriSign's signaling system 7 (SS7) network, the largest independent SS7 network in North America, via a SIP-enabled softswitch and a secure virtual private network (VPN). The basic service provides connectivity to carrier networks in North America; international connectivity is available as an option. One of the biggest challenges VoIP carriers face is that they still need to invest in people and equipment to connect to the SS7 network, and this can be one of the biggest cost items for jumping into VoIP technology, says Vernon Irvin, executive vice president of VeriSign Communications Services. "This new VeriSign service offering will help drive business for VoIP providers. One IP connection to VeriSign now connects them to almost every switched operator in North America.
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Performance Analysis of a VoIP Access Architecture
Using a simulation model for a benchmark VoIP access architecture, we investigate the performance issues associated with mixing real-time voice and congestion-sensitive data traffic. Arbitration of shared facility is accomplished via First Come First Serve (FCFS), Strictly Priority (SP), and Weighted Fair Queuing (WFQ) disciplines. The performance metrics used are facility utilization, transmission delay, queuing delay and packet loss. Engineering rules for sizing the network are provided. More specifically, our results indicate that proper engineering of the queue size under the SP discipline can prevent any packet loss of voice traffic; proper setting the weights of the WFQ scheduler can control the delay for voice traffic; and increasing the queuing delay of the WFQ scheduler can improve the packet loss rate of data traffic.