Linksys SPA921 Cisco SPA9000 Voice System Administration Guide - Page 111

Administering the SPA400 and Voice Mail Service Configuring a SPA400 to Interoperate with the SPA9000 5 TIP If you install multiple SPA400 units, keep track of the MAC addresses to ensure that you know which device you are configuring. In the administration web server, you can see the MAC address by clicking the Status tab. STEP 1 Connect to the SPA400 administration web server. (See "Connecting to the SPA400 Administration Web Server," on page103.) STEP 2 When the password prompt appears, enter the user name and password. Then click OK. NOTE For more information about the administrator account, see "Managing Access to the SPA400 Web-Based Configuration Utility," on page106. STEP 3 Click Setup tab > SPA9000 Interface. STEP 4 Enter the following settings: • User ID: 9000 This is the user ID that the SPA9000 will use to register with the SPA400. Any ID can be used, but must match exactly the User ID that you entered on the corresponding SPA9000 Voice > Line page. • SPA9000 Address: Select the Discover Automatically radio button (required for SPA9000 operation). This setting enables the SPA400 to learn the IP address and the UDP port of the SPA9000 the from the SIP Registration packets sent by SPA9000. • Call Signalling Packets: 68 • RTP Packets: b8 • Leave the Signalling Port at the default value of 5060. This port is the source port that is used to originate signaling between the SPA400 and the SPA9000. • Leave the RTP Port at the default value of 10000. This port is the base UDP port for the block of UDP ports that the SPA400 uses to send and receive RTP and RTCP packets. SPA9000 Voice System Administration Guide 109