cheap voip service providers


cheap voip service providers
does any one know of any voip service provider that provide cheap flat rates to africa and the middle east?


I live in Malaysia by the way and i’d to start a call centre business particularly targeting african and middle eastern clients.

You can try

http://voipsms.blogspot.com


OBi110 Voice Service Bridge and VoIP Telephone Adapter

OBi110 Voice Service Bridge and VoIP Telephone Adapter


$45.00


Support (technical or warranty) will be provided by the seller from whom you obtain the product.With the OBi110, you are in control of your communications life.

From the OBi110′s on-board connections to a telephone, your phone line and via the Internet, you have the power to bridge mobile, fixed line and Internet phone services (VoIP).

The OBi provides you with an abundance of control and enhan…


OBi100 VoIP Telephone Adapter and Voice Service Bridge

OBi100 VoIP Telephone Adapter and Voice Service Bridge


$42.98


With the OBi100, you are in control of your communications life.
From the OBi100′s on-board connections to a telephone and the Internet, you have the power to bridge Internet phone services (VoIP) with mobile and land line services.

The OBi provides you with an abundance of control and enhanced convenience.

OBi can use the web and social networking tools to bring everything and everybody togethe…


Ooma Telo Free Home Phone Service

Ooma Telo Free Home Phone Service


$184.99


Ooma VOIP Telo offers VOIP service for those homes that have access to DSL – Cable – Broadband Internet Service. Using VOIP (Voice Over Internet Protocol) and an optional Ooma Handset you can make phone calls across the United States for virtually free. International calls cost pennies. The base station interprets calls from the handset to your Internet service and calls are transmitted over Inter…


The Service Providers

The Service Providers


$95


The success of service organizations ultimately depends on employees in customer service roles; their performance affects customer satisfaction and loyalty. Integrating theory and research, this book explores the factors that determine the performance of service providers, and points to important managerial implications.

Service Providers

Service Providers


$34.99


A strategic guide to mastering service provider relationships Well-known business management consultant and Boston Globe columnist Mary Helen Gillespie helps business and IT managers navigate through the confusing technology-driven landscape of service providers. Offering insight into the points of view for both the service provider and client, Gillespie guides readers through available services, from Internet access and applications service providers, to wireless and networking services and IT management services. Readers will find business models, overviews of the enabling technologies, coverage of economic and management issues, and clear descriptions of service offerings within each provider type. Most importantly, decision makers will be able to choose the right service provider to meet their needs and develop strategic partnerships when outsourcing non-core business functions.

Beyond VoIP Protocols

Beyond VoIP Protocols


$95


In 1999-2000, VoIP (Voice-over-IP) telephony was one of the most successful buzzwords of the telecom bubble era. However, in 2001-2003, VoIP faced a very tough reality check. Now, manufacturers and service providers are drawing on what they have learnt from past experience in order to prepare to participate in the next major challenge faced by the telecommunications industry. This book offers a comprehensive overview of the issues to solve in order to deploy global revenue-generating effective “multimedia” services. Drawing on extensive research and practical deployment experience in VoIP, the authors provide essential advice for those seeking to design and implement a post-bubble VoIP network. Beyond VoIP Protocols: Understanding Voice Technology and Networking Techniques for IP Telephony Introduces the basics of speech coding and voice quality Demonstrates how quality of service may be built into the network and deals with dimensioning aspects, e.g. multipoint communications and how to model call seizures. Explores the potential of multicast to turn an IP backbone into an optimized broadcast medium Includes amply illustrated, state-of-the-art practical advice for formulating a complete deployment strategy A companion volume to “IP Telephony: Deploying VoIP Protocols”, this book takes the reader a stage deeper into how to prepare the network and exploit VoIP technology to its full potential.

VoIP Emergency Calling

VoIP Emergency Calling


$115


This book provides a comprehensive view of the emerging standards for VoIP emergency calling from an International perspective In this book, the authors provide a treatment of the VoIP emergency calling process that is both comprehensive, looking at all aspects of emergency calling, and practical, providing technical details on how such functions can be implemented. In addition, the authors describe the standardization efforts of the Internet Engineering Task Force who are currently working to improve the situation for VoIP emergency calls. The book provides an overview of emergency calling with a particular focus on the ECRIT emergency calling architecture, and discusses considerations related to implementation, deployment, and regulation of next-generation emergency calling. It also takes a look at practical aspects of emergency calling, with a set of exercises to help the reader get familiar with the technologies involved. Key Features: Comprehensive view of emerging standards for VoIP emergency calling from an international perspective Practical guides for implementing the core of the emergency calling architecture Architectural, practical, and regulatory perspectives Written by experts working on the development of emergency calling architectures and its implementation Includes an accompanying website with open-source software packages ( http://www.voip-sos.net/ ) This book will be an invaluable resource for product managers and developers, equipment vendors, network operators, emergency service providers, and telecommunications regulators. Industry professionals interested in standards compliance will also find this book of interest.

Securing VoIP Networks: Threats, Vulnerabilities, and Countermeasures

Securing VoIP Networks: Threats, Vulnerabilities, and Countermeasures


$52.12


In" Securing VoIP Networks, "two leading experts systematically review the security risks and vulnerabilities associated with VoIP networks and offer proven, detailed recommendations for securing them. Drawing on case studies from their own fieldwork, the authors address VoIP security from the perspective of real-world network implementers, managers, and security specialists. The authors identify key threats to VoIP networks, including eavesdropping, unauthorized access, denial of service, masquerading, and fraud; and review vulnerabilities in protocol design, network architecture, software, and system configuration that place networks at risk. They discuss the advantages and tradeoffs associated with protection mechanisms built into SIP, SRTP, and other VoIP protocols; and review key management solutions such as MIKEY and ZRTP. Next, they present a complete security framework for enterprise VoIP networks, and provide detailed architectural guidance for both service providers and enterprise users. 1 Introduction 2 VoIP Architectures and Protocols 3 Threats and Attacks 4 VoIP Vulnerabilites 5 Signaling Protection Mechanisms 6 Media Protection Mechanisms 7 Key Management Mechanisms 8 VoIP and Network Security Controls 9 A Security Framework for Enterprise VoIP Networks 10 Provider Architectures and Security 11 Enterprise Architectures and Security

Application Service Providers (ASPs): A Manager''s Guide

Application Service Providers (ASPs): A Manager”s Guide


$46.99


Application Service Providers (ASPs): A Manager”s Guide

Exemption From Local Taxation For Wireless Service Providers

Exemption From Local Taxation For Wireless Service Providers


$14.4


Exemption From Local Taxation For Wireless Service Providers

Zoom 5806 VoIP Telephone Adapter

Zoom 5806 VoIP Telephone Adapter


$60.99


1 1 x RJ-11 FXO 1 x RJ-11 FXS 1 x RJ-45 Network 1.10″ Height x 5.75″ Width x 4.41″ Depth 5806 5806 VoIP Telephone Adapter 5806-00-11 5806 VoIP Telephone Adapter Power adapter Quick Start Guide CD ROM Ethernet cable Phone cord IEEE 802.1Q VLAN IEEE 802.1P QoS DHCP Provisioning/Configuration/Authentication Password-protected, Web based administration ARC4 Encryption for TFTP Configuration Profiles Authentication (Digest using MD5) Q.24 DTMF generation and detection 3-way conference calling with local mixing The economical Zoom Model 5806 Voice over IP Telephone Adapter allow standard analog telephones to make and receive calls over a broadband Internet connection. Simply plug a corded phone or cordless phone base station into the adapter and then plug the telephone adapter into a broadband-connected router or Internet gateway. Up to five and often more attached phones can be rung simultaneously using the built-in ring generator. The Model 5806 supports industry-standard Session Initiation Protocol (SIPv2) and works with a wide range of service providers and SIP-based VoIP equipment. G.165 G.168 G.711 G.729 VoIP Gateway Zoom Zoom Telephonics, Inc iLBC www.zoom.com

Dialogic DMG2030DTI VoIP Gateway

Dialogic DMG2030DTI VoIP Gateway


$2236.99


1 1 x RJ-45 10/100Base-TX Network LAN 1 x RJ-45 T1/E1 Network WAN 1.54 Mbps 1.54 Mbps T1 1.68″ Height x 19″ Width x 14.20″ Depth 10 Mbps 10 Mbps Ethernet 10/100Base-TX 100 Mbps 100 Mbps Fast Ethernet 11.10 lb 19″ Rack-mountable 2 Year Limited 2.05 Mbps 2.05 Mbps E1 2000 886-427 90 V AC to 264 V AC Power Supply Silence suppression with comfort noise Seamless interoperability with Dialogic Host Media Processing (HMP) Software Dynamic jitter buffer IP Channel Density: 30 TLS for SIP messages SRTP for media stream HTTPS for web interface Web Management SNMP v1 Telnet QoS The Dialogic 2000 Media Gateway Series (DMG2000 Gateway) is a turnkey appliance that seamlessly merges traditional PSTN technology with IP networks. This economical gateway helps consolidate typically separate voice and data networks and provides new and differentiated communications services. Without making radical, disruptive, and expensive upgrades to existing PBX equipment, service providers and enterprises can realize the benefits of a converged voice and data network. DMG2030DTI DMG2030DTI Media Gateway Dialogic Dialogic Corporation G.168 G.711 G.711 u/A G.723.1 G.729ab Rack-mountable RoHS STP 10/100Base-TX T1/E1 VoIP Gateway Yes www.dialogic.com

Zoom 58010011 Telephone Adapter without a bundled VoIP Service

Zoom 58010011 Telephone Adapter without a bundled VoIP Service


$57.99


The Zoom model 58010011 let your standard analog telephone make and receive calls over a broadband internet connection. Just plug a regular phone into the adapter and that adapter into a broadband-connected router or internet gateway, and you’re off and talking! This versatile adapter supports the standard Session Initiation Protocol (SIPv2) and works with a wide variety of service providers and equipment. It also offers an FXS and an FXO port, and allows calls to be bridged between the Public Switched Telephone Network (PSTN) and the Voice over Internet Protocol (VoIP). The 58010011 also gives you the TelePort , a relay allowing a single phone to place and receive calls over both networks. PSTN fail-over automatically routes calls over the dial-up phone network when power is lost, and supports emergency dialing like 911. You get all the features you’ve come to expect: Call Waiting, Caller ID, Call Transfer, Hold and even Voice Message indicators. Unique features let you manipulate the quality of Type: Wired VoIP Protocols: Voice over IP (VoIP) Protocols: SIPv2 – Session Initiation Protocol (RFC 3261, 3262, 3263, 3264) SDP – Session Description Protocol (RFC 2327) RTP – Real Time Protocol (RFC 1889, 1890) RTCP – Real-Time Control Protocol (RFC 1889) X-NSE – Tone Events for SIP/RTP (RFC 2833) AVT – Tone Events for SIP/RTP (RFC 2833) Power-on Auto Registration Re-registration with SIP Proxy Server SIP over UDP SIP authentication (HHP Digest with MD5) Network Protocols: IPv4 – Internet Protocol Version 4 (RFC 791) TCP – Transmission Control Protocol (RFC 793) UDP – User Datagram Protocol (RC 768) ICMP – Internet Control Message Protocol. (RFC 792) RARP – Reverse Address Resolution Protocol (RFC 903) ARP – Address Resolution Protocol (RFC 826) DNS – Domain Name Server DHCP Client – Dynamic Host Control Protocol (RFC 2131) NTP – Network …

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Filed under: Voice Over Internet Protocol (VoIP)

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