# 5 Configuring VoIP Cards and Features

This chapter contains information on Voice over Internet Protocol (VoIP) modules and feature configuration procedures. Information is provided about configuring the Voice Data Access Concentrator card, (VDAC)-ONE and the IP Network Interface Series 2 card. The VoIP modules included in this chapter are: Session Initiation Protocol (SIP) and H.323. The RFC 2833 feature is also described in this chapter.

In this section:

Configuring VDAC-ONE

Configuring IP Network Interface Series 2/3 Cards

Configuring Gateway Mode

Configuring RFC 2833

Configuring SIP

Configuring the Call Agent

Configuring H.323

Voice over Internet Protocol. The delivery of voice information in digital form in discrete packets rather than in the traditional circuit-committed protocols of the public-switched telephone network (PSTN).
Internet Protocol. Part of the TCP/IP family of protocols used to route messages and tracks the addresses of nodes.
Session-Initiation Protocol. A signaling protocol used for establishing sessions in an IP network. A session could be a simple, two-way telephone call, or it could be a collaborative multi-media conference session.
ITU-T standard defines a set of call control, channel setup, and codec specifications for transmitting real-time voice and video over networks that do not offer guaranteed service or quality of service.