SIP Services

A2Z Global Call is your best source for internet VoIP services and international phone cards. Our vision is to provide our customers, on a global scale, with access to the latest internet-based information services at competitive prices.

AccessLine Communications Corporation is a leader in providing hosted communications and managed voice services to the Small to Medium Business (SMB) market place and telecommunications partners serving this market.

AccessOne Technologies, LLC started as a dialup and web hosting provider called Preferred Designs, LLC in 1999. Preferred Designs grew to a full fledged ISP, hosting nearly 500 web sites, 400 dialup accounts, and management of a dozen small to medium sized data networks. In 2001, the owner of Preferred Designs met two of the four future partners of AccessOne Technologies, LLC. In early 2003, the final member jumped aboard and the AccessOne VOIP vision began.

Advanced VoIP (Pvt.) Limited (AVPL) is a well known global billing and OSS vendor that offers core-to-edge solutions capable enough to cater billing needs for your business model. It provides scalable and cost effective solutions that add value to your company and reduce overall operating expenses. AVPL delivers flexible, end-to-end billing solutions to diverse range of Communication Service Providers (CSPs) across the globe. With its current range of products, AVPL provides state-of-the-art customizable solutions to more than 300 customers worldwide.

AG Projects is an Open Source software vendor established in 2002 specialized in serving companies like cable operators and Internet service providers. We provide simple solutions for their complex problems. AG Projects focus is the delivery and support of SIP infrastructure based on OpenSER SIP Proxy/Registrar/Presence server and related projects that complements xDSL, fiber and cable networks. The delivery includes the analysis of requirements, tailoring of our standard solutions to meet the requirements, project management, implementation and after sales training and support activities.

APEX Voice Communications is a market leader in multi-service Application Servers for enhanced voice and video services. Since 1989, our products have enabled wireless and wireline service providers worldwide to generate revenue, minimize churn, and ensure scalability and flexibility, as market demands grow and user needs change. Our products are engineered to be network independent, making our Application Servers the ideal next-generation service delivery platforms for 3G, SIP/IMS, TDM/SS7, AIN/IN and converged networks.

ASTELNET is a Telco service provider and vendor of voice and data equipment, serving emerging and traditional telecoms and service providers. The company offers extensive line of Voice-over-IP products and solutions which enable service providers to build robust and scalable networks for delivery of next generation services to subscribers. ASTELNETS’s innovative solutions are successfully deployed in different countries worldwide.

aTelo, Inc. provides a wide range of services in business re-engineering, information technology consulting, system integration, software engineering and much more. Our mission is to help our customers obtain maximum value of their technology investment. Our fields of expertise include: analysis of current business systems, strategic system design and systems implementation, technical training, documentation, network planning, system security evaluation, copyright and patent research, development of acquisition and expansion strategies for technology oriented companies.

AtlasVoice is your high quality, low cost option to land lines and voice over internet phone services. Our strong focus on customer service together with simplicity and versatility, delivers quality and value to all of our residential and small business clients.

Matt Van Bergen, Principal Consultant and President, founded Baraap in 1998 after spending 8 years working for various technology consulting companies. He started the business to offer clients technology expertise with an honest handshake. Today, Baraap is a privately owned corporation with offices located in downtown Chicago.