Linksys ATA Administration Guide
19
Linksys ATA Connectivity Requirements
Introducing Linksys Analog Telephone Adapters
Notes:
•
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 PAP2T is located behind a router. If necessary, explicit port ranges can
be specified for SIP and RTP.
Linksys SPA2102 Connectivity
As shown in the following illustration, the SPA2102 has two FXS ports (voice lines 1 and 2).
By default, the device attached to the LAN port is assigned the network address 192.168.0.0
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
192.168.1.0.
Notes:
•
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 SPA2102 is located behind a router. If necessary, explicit port ranges
can be specified for SIP and RTP.
Line 1
Line 2
Internet
IP Router (with
hairpinning) or
Broadband modem
ITSP
ISP
SPA2102
LAN
WAN
Ethernet
port
LAN
port
Administrative
IVR (Line 1 or
Line 2)
IP
IP
Administration
PC
187257