Hitachi Rolls Out Compact SIP Gateway

 
 
By Ellen Muraskin  |  Posted 2004-06-17 Email Print this article Print
 
 
 
 
 
 
 

The NT-4S includes four CO-facing ports to packetize the voice traffic coming out of conventional PBX equipment.

Add Hitachi to the ranks of VOIP gateway manufacturers. The NT-4S from Tokyo-based Hitachi Communication Technologies Ltd. is a SIP (RFC3261) gateway with four CO-facing ports to packetize the voice traffic coming out of conventional PBX equipment. Read more here about companies touting VOIP gateways as a way to switch to IP telephony.
The compact device measures 210 millimeters by 166 mm by 40 mm, weighs 1kg and is equipped with a G.711 (uncompressed, 64 kbps) and G.729a (compressed, 8kbps) voice codec. It includes a G.165-compliant line echo canceller.
The 10Base-T/100Base-TX system is priced at $1,684. The company plans to sell 20,000 units annually, with shipment slated for July 14. Check out eWEEK.coms VOIP & Telephony Center at http://voip.eweek.com for the latest news, views and analysis on voice over IP and telephony.
 
 
 
 
Ellen Muraskin is editor of eWEEK.com's VOIP & Telephony Center. She has worked on the editorial staff at Computer Telephony, since renamed Communications Convergence, including three years as executive editor. Muraskin's work has also appeared in Popular Science magazine and other publications.
 
 
 
 
 
 
 

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