SIP PROXY

A SIP Proxy is the key element of an IP PBX. It is the component that handles the setup of SIP calls in the network. A SIP Proxy is also known as a SIP Server or a Registrar.

The SIP Proxy network elements are essential for SIP communications to work as a practical service. Even when two SIP endpoints could communicate without any SIP infrastructure, this approach is not practical in a business environment.

SIP Proxy servers have various functions such as helping route requests to the user’s location, authenticate and authorize users for services, implement provider call-routing policies and provide features to users.

An example of a SIP Proxy server is 3CX Phone System - a Windows-based SIP server.

3CX Phone System – a SIP Proxy server

3CX Phone System for Windows is an IP Phone System based on the SIP standard. It replaces proprietary PBX, supports popular SIP soft/hard phones, VOIP services and VOIP providers. 3CX Phone System web-based administration makes phone system management easy.

Key advantages

• Increases mobility
• Eliminates costly telephone tag
• Easier installation, management, adds/moves
• Windows-based
• CRM, ERP, Outlook integration
• Vendor independent

Take a product tour of 3CX Phone System or download the free edition today and break free from your proprietary PBX!