We have a cisco 3660 router with T1 controller and it supports the voice.
I ve configured it to use for PLAR mode it is working fine the users call my T1 number and after this they press 9 after it press the phone number of another line which they want to have their free tone on it ,now i want they skip these two steps first call 9 and after it phone number i mean they here the free tone after they immediately pick up the handset,here is the sample configuration.
dial-peer voice 1 pots
dial-peer voice 2 voip
session target ipv4:172.16.1.123
voice port 1/0/0
connection plar 14085274000