Cisco SPA525G Administration Guide - Page 20

2 Getting Started Network Configurations At minimum, the SPA9000 Voice System includes a SPA9000 IP PBX and one or more SPA900 series IP phones. These devices are connected through a switch to a local area network. With an Internet connection, the SPA9000 Voice System can subscribe to ITSP services to take advantage of low calling rates. With the optional SPA400, the SPA9000 Voice System can connect to the Public Switched Telephone Network (PSTN) to support legacy phone lines. The SPA400 also provides local voice mail service. When you use Cisco SPA IP and Wireless-G IP phones with the Cisco SPA9000 Voice System, the following additional phone features are available: • Auto attendant for multiple extensions • Music on hold • Configurable call routing • Multiple DID numbers per VoIP line • Call hunting (sequential, round robin, random) • Group paging • Call parking • Call pick up • Group call pick up You can configure and manage the SPA9000 Voice System using an Interactive Voice Response (IVR) system, the Cisco SPA9000 Voice System Setup Wizard, or a built-in web server. For more information, see the Cisco SPA9000 Voice System Administration Guide. 18 Cisco SPA and Wireless IP Phone Administration Guide