Spa3102 Connectivity - Cisco Small Business Pro SPA3102 Administration Manual

Introducing Cisco Small Business Analog Telephone Adapters
ATA Connectivity Requirements
NOTE
ATA Administration Guide

SPA3102 Connectivity

As shown in the following figure, the SPA3102 has one FXS port (voice line 1).
Administrative
IVR (Line 1 or
Line 2)
Line 1
PSTN
Line 1
PSTN
SPA3102
By default, the device on the LAN port is assigned the network address
192. 1 68.0.0 with a subnet mask of 255.255.255.0. If there is a network address
conflict with a device on the Ethernet port, the network address of the device on
the LAN port is automatically changed to 192. 1 68. 1 .0.
•
The IVR functions are accessed by connecting an analog telephone to Line 1.
•
For proper operation, the service provider should use an Outbound Proxy to
forward all voice traffic when the SPA3102 is located behind a router. If
necessary, explicit port ranges can be specified for SIP and RTP.
IP Router (with
hairpinning) or
Broadband modem
Ethernet
port
LAN
LAN
port
1
Internet
ISP
WAN
IP
IP
ITSP
Administration
PC
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