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Introducing Cisco Small Business Analog Telephone Adapters
ATA Connectivity Requirements
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 mode
m
ITSP
ISP
PAP2T
LAN WAN
Ethernet
port
Administrative
IVR (Line 1 or
Line 2)
IP
IP
187420