Cisco SPA2102-SF Administration Guide - Page 18

Introducing Cisco Small Business Analog Telephone Adapters Comparison of ATA Devices 1 ATA Models Product Name PAP2T SPA2102 SPA3102 FXS (Analog Phone) 2 2 1 FXO PSTN - - 1 SPA8000 8 - SPA8800 4 4 WRTP54G 2 - RJ-45 Internet (WAN) RJ-45 Ethernet (LAN) 1 - 1 1 1 1 Voice Lines 2 2 1 1 Maintenance 8 only 1 Maintenance 8 only 1 4 2 Description Voice adapter with two FXS ports. Voice adapter with router. Voice adapter with router and PSTN connectivity. Voice adapter with support for up to eight FXS devices. Supports SIP Trunking for inbound call routing to trunk groups. Also has a single multiport RJ-21 50-pin connector for optional patch-panel connectivity. Voice adapter with support for up to four FXS phones and up to four FXO PSTN lines. Also has a single multiport RJ-21 50-pin connector for optional patch-panel connectivity. Wireless-G IP router with two FXS ports. Provides ATA device functionality. NOTE The information contained in this guide is not a warranty from Cisco. Customers planning to use ATA devices in a VoIP service deployment are advised to test all functionality they plan to support before putting the ATA device in service. By implementing ATA devices with the SIP protocol, intelligent endpoints at the edges of a network perform the bulk of the call processing. This allows the deployment of a large network with thousands of subscribers without complicated, expensive servers. The following figure illustrates how the different ATA devices provide voice connectivity in a VoIP network. Cisco Small Business ATA Administration Guide 18