IP Telephone (VOIP/SIP)

The era of separate voice and data networks is gradually nearing an end. In the future, a single, converged network will provide the basis for all forms of communication. In addition to reducing costs, that convergence will enable a completely new range of services.

Voice over IP (also called VoIP, IP Telephony or, Internet telephony) is the routing of voice conversations over the Internet or any other IP-based network. The voice data flows over a general-purpose packet-switched network, instead of traditional dedicated, circuit-switched voice transmission lines.

Protocols used to carry voice signals over the IP network are commonly referred to as Voice over IP or VoIP protocols.

Voice over IP traffic may be deployed on any IP network, including ones lacking a connection to the rest of the Internet, for instance on a private building-wide LAN.


Session Initiation Protocol (SIP)

For Avaya, Session Initiation Protocol (SIP) is a catalyst for the next phase of open communications using not only IP Telephony and VoIP, but the full suite of IP-related protocols.

SIP is an interoperable protocol in a multi-vendor environment that enables mobility and systems flexibility in multi-service networks.

A user with multiple endpoint devices such as a cell phone, desk phone, PC client, and PDA can rely on SIP to permit such devices to operate as a single system to meet changing needs for real-time communications. SIP brings about increased efficiency and productivity. SIP provides a practical means of multi-vendor integration at the highest and most diverse communication levels.

In a VoIP converged network with SIP, organizations can pick the best of breed from a variety of vendors to create a seamless converged communication network.

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