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Press Release -- December 19th, 2011
Source: ADTRAN
Tags: Equipment, Ethernet, Video, VoIP

ADTRAN Eases Transition to VoIP for the Global Mid-Enterprise Market

NetVanta® 644 Leverages ADTRAN’s Market Leadership in VoIP Access and SIP Trunking to Reduce Complexity in Voice Migration

HUNTSVILLE, Ala.–(BUSINESS WIRE)–Dec. 19, 2011– ADTRAN®, Inc., (NASDAQ:ADTN, news, filings), a leading provider of next-generation networking solutions, today announced it has expanded its industry-leading family of gateway products for greater global reach. The NetVanta 644 Global VoIP Media Gateway seamlessly converts TDM to IP and was designed to help the medium enterprise market reduce the cost and complexity of migrating to more efficient VoIP communications. This streamlined migration solution enables providers to support voice deployments on the data network they currently are investing in to meet the growing demand for cloud services, virtual mobility and other data networking programs.

“The strength of ADTRAN’s U.S. market position in the IP Business Gateway, SIP and Voice Access Trunking markets provides the company with the foundation to expand its position worldwide,” said Diane Myers, directing analyst, VoIP and IMS, Infonetics Research. “The introduction of the NetVanta 644 gives it the platform to meet the needs of a broader set of enterprise customers and is a strong reflection of the company’s commitment to growing its business around the globe.”

The NetVanta 644 features Quad T1/E1 interfaces and supports up to 120 simultaneous VoIP calls while providing ADTRAN’s innovative Voice Quality Monitoring (VQM) on each call. Redundant Ethernet functionality is a unique failover feature that provides customers confidence their voice connectivity will be maintained in the event of circuit failure. This solution is ideal for:

  • Service providers offering SIP trunking service to medium and large enterprise customers needing to interface to legacy PBX’s.
  • Enterprises who currently have large data networks in place, but still have separate voice infrastructure will utilize this to converge their networks and allow their voice traffic to route to their IP data networks.
  • Resellers needing to enable traditional PSTN connectivity to their customers who have converted to Unified Communications solutions like ADTRAN’s NetVanta UC Enterprise Communications Server.

“In today’s capital and operationally sensitive market, the ability to utilize existing data network resources for VoIP will have tremendous value,” said Chris Thompson, senior product manager, ADTRAN Enterprise Networks Division. “With the introduction of the NetVanta 644, ADTRAN’s customers worldwide can streamline the transition from TDM to IP for voice communications.”


ADTRAN, Inc. is a leading global provider of networking and communication equipment, with a portfolio of more than 1,700 solutions. ADTRAN’s products enable voice, data, video, and Internet communications across a variety of network infrastructures. ADTRAN solutions are currently in use by service providers, private enterprises, government organizations, and millions of individual users worldwide.

For more information, contact the company at 800 9ADTRAN (800 923-8726) or via e-mail at On the Web, visit

Source: ADTRAN, Inc.

Connect2 Communications for ADTRAN, Inc.
Joyce Wady, 919-435-9120

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