Introducing Cisco Small Business Analog Telephone Adapters
ATA Connectivity Requirements
Cisco Small Business ATA Administration Guide
21
1
PAP2T Connectivity
As shown in the following figure, the PAP2T has two FXS ports (voice lines 1 and
2).
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 PAP2T 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
PAP2T
LAN
WAN
Ethernet
port
Administrative
IVR (Line 1 or
Line 2)
IP
IP
187420