With the SPA232D Mobility Enhanced ATA, you can provide your analog phone and SPA302D cordless handsets with access to analog and Internet phone services through a standard RJ-11 phone port and a built-in DECT base station. The ATA supports up to five SPA302D handsets. The ATA connects to the Internet through a broadband (DSL or cable) modem or router. The ATA can
be used with an on-site call-control system or an Internet-based call-control system.
The ATA is an intelligent low-density Voice over IP (VoIP) gateway that enables carrier-class residential and business IP Telephony services delivered over broadband or high-speed Internet connections. An ATA maintains the state of each call it terminates and reacts appropriately to user input events (such as on/off hook or hook flash). The ATAs use the Session Initiation Protocol (SIP) open standard so here is little or no involvement by a “middle-man” server or media gateway controller. SIP allows inter-operation with all ITSPs that support SIP. The system supports four simultaneous calls, including “active” calls and “on-hold” calls. A phone or DECT handset can handle one on-hold call and one active call simultaneously
Understanding Voice Service Operations
The ATA allows calls to be made by using SIP-based Voice-over-IP (VoIP) services and traditional telephone Public Switched Telephone Network (PSTN) services. Calls can be placed and received by using an analog phone or fax machine and
SPA302D handsets.
