ATIS Releases New Standard

ATIS, the technical planning and standards development organization, has released the first standard to address the interface between IP networks and that focuses on supporting voice services.

It provides a consistent intercarrier interface telecom companies can use to migrate the network-to-network interface (NNI) from TDM circuit-switched to IP networks.

The standard, dubbed IP NNI Standard for VoIP, includes definitions for interconnection architecture; SIP call/session control signaling; signaling and media transport; QoS; and the association between call control and media control. Mandatory SIP URIs also can be supported.

“The ability to migrate the traditional phone system to IP networks has taken a significant step forward with the development of this standard,” said Susan Miller, president and CEO of ATIS. “This new standard fills a real need in the industry as the networks face an expansion of VoIP services.”

IP NNI Standard for VoIP further includes call flow illustrations for a variety of call situations in which the IP backbone infrastructure of two carriers are traversed, and one or both ends of the call exist in the PSTN or on an IP network.

ATIS www.atis.org

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