Configure Linksys Key System on SPA300/SPA500 Series IP Phone

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Updated:December 11, 2018
Document ID:SMB3246

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Configure Linksys Key System on SPA300/SPA500 Series IP Phone

Objective

Session Initiation Protocol (SIP) is a signaling protocol used to create, manage and terminate sessions in an IP based network. SIP is a mechanism for call management. It also allows for the establishment of user location and provides for feature negotiation so that all of the participants in a session can agree on the features to be supported among them, and enables the ability to change features of a session while it is in progress.

The objective of this document is to show you how to configure the Linksys Key System Parameter. 

Applicable Devices

• SPA300 Series IP Phone

• SPA500 Series IP Phone

Linksys Key Configuration

Note: On the actual SPA300 or SPA500 Series IP Phone set signaling protocol as SIP, use navigation keys to go to Device Administration > Call Control Settings > Signaling Protocol > SIP.

Step 1. Use the web configuration utility to choose Admin Login > Advanced > Voice > SIP. The SIP page opens:


Step 2. Choose Yes or No from the Linksys Key System drop-down list to enable or disable the Linksys Key System. If you choose Yes your phone will configure as a part of Linksys Key System. The defaults is Yes. 

Step 3. Choose Yes or No from the Key System Auto Discovery drop-down list to enable or disable auto discovery of the call control server. This feature is disabled for  teleworkers or other scenarios where multicast does not work.

Step 4. Choose the desired Force LAN Codec from the Force LAN Codec drop-down list.

• G.711u  —  G.711u codec name used in session description protocol (SDP). Defaults to Pulse Code Modulation mu-law (PCMU).

• G.711a  —  G.711a codec name used in session description protocol (SDP). Defaults to Pulse Code Modulation A-law (PCMA).

• None  — Defaults to none.

Step 5. Enter the Multicast Address in the Multicast Address field. It is used to communicate with Cisco SPA IP phones. The default is 224.168.168.168:6061.

Step 6. Enter the IP address of the call control server IP in the Key System IP Address field. It is the IP address for teleworkers or other scenarios where multicast does not work.

Step 7. Click Submit All Changes to save the settings.

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