Cisco SRP521W-K9-G1 Administration Guide - Page 87

6 Configuring Voice This chapter describes how to configure voice settings and voice services for the Services Ready Platforms. It includes the following sections: • Configuring Voice Services • Configuring Voice Settings Configuring Voice Services This section describes how to configure your SRP to meet the customer's requirements for voice services. It includes the following topics: • Understanding Voice Port Operations • Managing Caller ID Services • Silence Suppression and Comfort Noise Generation • Configuring Dial Plans • Secure Call Implementation Understanding Voice Port Operations The SRP520 has a number of voice ports that allow calls to be made from locally connected analog handsets or fax machines by using SIP based Internet phone services. In addition to the four handset (FXS) ports, the SRP also has a single line (FXO) port that can be used to place calls to the telephone network in the event of broadband or even SRP failure. Note: The SRP520 line port is a passive interface that connects the PSTN line with FXS port 1 during failure conditions. Calls cannot be routed dynamically to this interface under normal operating conditions. Cisco SRP500 Series Services Ready Platforms Administration Guide (SRP520 Models) 87