Introducing Cisco Small Business Analog Telephone Adapters
ATA Connectivity Requirements
Cisco Small Business ATA Administration Guide 16
1
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.
NOTE
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.
IP
IP
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