scope:

SCOPE, PURPOSE, AND APPLICATION

This standard defines the IP Network-to -Network Interface (NNI) for VoIP between carriers. It addresses the need for a standard interface as telecom networks migrate the NNI from TDM circuitswitched to IP. The focus of this standard is to support VoIP. This standard defines:

♦ Interconnection architecture;

♦ SIP call/session control signaling;

♦ Signaling and media transport;

♦ Quality of Service (QoS);

♦ Association between call control and media control; and

♦ Mandatory SIP URIs to be Supported.

There is also an informative annex on items for consideration in SLAs.

The following related topics are not defined in this document:

♦ Call Routing;

♦ Security;

♦ Session Border Controller Functions; or

♦ Call Admission Control and Traffic Management.