Linksys RTP300 User Guide - Page 61

SIP Trunking and Hunt Groups on the SPA8000 SIP Trunking and Hunt Groups on the SPA8000 The SPA8000 supports SIP Trunking, which allows you to connect a traditional PBX to VoIP services. In this configuration, calls go through the ITSP rather than the PSTN, yet the call routing functionality is similar to that of traditional PSTN lines. You can configure up to four trunk groups for the purpose of inbound call routing and outbound caller identification. You can configure a trunk number on the SPA8000, such that an incoming call automatically rings the grouped lines simultaneously or in a specified order. For outbound calls, SIP Trunking ensures that all calls on a trunk line can be identified by the trunk number and a common caller ID. This feature helps you to ensure that calls are directed to available lines and that work groups such as sales teams can work together to answer calls. In addition, teams can project a common identity when placing outbound calls on a trunk. This section provides information about SIP trunking and explains how to configure your trunk groups. Refer to the following topics: • "About SIP Trunking," on page 62 • "Setting the Trunk Group Call Capacity," on page 64 • "Inbound Call Routing for a Trunk Group," on page 64 • "Contact List for a Trunk Group," on page 65 • "Outgoing Call Routing for a Trunk Group," on page 66 • "Configuring a Trunk Group," on page 67 • "Additional Notes About Trunk Groups," on page 69 • "Setting the Hunt Policy," on page 69 • "Trunk Group Management," on page 68 Linksys ATA Administration Guide 61