Deliver VoIP to legacy and IP phone systems cost effectively -

Deliver VoIP to legacy and IP phone systems cost effectively


A series of customer premises-based products allow Incumbent Local Exchange Carriers (ILECs) and Competitive Local Exchange Carriers (CLECs) to implement a cost-effective IP network architecture for Voice over IP (VoIP) deployment, while supporting customers' legacy equipment. Developed by Adtran, the Total Access 900 series lets customers maximize the benefits of VoIP, while transitioning from TDM to IP at their own rate.

The products are suited for hosted PBX or IP Centrex applications, and can be used as a SIP gateway to overlay additional services to customers. Features such as dynamic bandwidth allocation and G.711 and G.729a voice compression technology allow carriers to save on backhaul costs. This provides the opportunity for enterprise customers to take advantage of increased features and cost savings as a result of VoIP implementation, while providing the option to maintain existing legacy infrastructure, implement a gradual IP migration, or select a complete overhaul of their network.

Total Access 900 Series products can act as a registrar for IP phones and as a Back-to-Back User Agent (B2BUA) to facilitate remote survivability and Network Address Translation (NAT) traversal. In the event of a service interruption on the wide-area network (WAN) or if the carrier's feature server were to become unavailable, these features allow calls to continue between IP-based or analog phones at the customer premises.

These devices offer one T1 port for WAN connectivity, one 10/100Base-T Ethernet port, and one DSX-1 port. The Ethernet port can be used to connect Power over Ethernet switches to network various devices and PCs, as well as to power IP phones and wireless access points. Now shipping, prices start at $1450. For more information, contact the company at

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