Cisco Small Business SPA2102 Administration Manual page 18

Introducing Cisco Small Business Analog Telephone Adapters
Comparison of ATA Devices
ATA Models
Product FXS
Name (Analog
Phone)
PAP2T 2
SPA2102 2
SPA3102 1
SPA8000 8
SPA8800 4
WRTP54G 2
NOTE
Cisco Small Business ATA Administration Guide
FXO RJ-45
PSTN Internet
(WAN)
— 1
— 1
1 1
— 1
4 1
— 1
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.
RJ-45 Voice
Ethernet Lines
(LAN)
— 2
1 2
1 1
Maintenance 8
only
Maintenance 8
only
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 multi-
port 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 multi-
port RJ-21 50-pin connector for
optional patch-panel connectivity.
Wireless-G IP router with two FXS
ports. Provides ATA device
functionality.
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