Cisco SPA2102 Administration Manual page 13

Introducing Cisco Small Business Analog Telephone Adapters
Comparison of ATA Devices
Cisco Small Business ATA Administration Guide
The following figure illustrates how the different ATA devices provide voice
connectivity in a VoIP network.
Figure 3 How ATAs Provide Voice Connectivity
• The PAP2T and the SPA8000 provide FXS ports to connect fax machines and
analog phones to IP telephone services.
• The SPA3102 and the SPA8800 act as SIP-PSTN gateways.
SPA2102
SPA3102
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