Hello, I'm not an E.E.. I'm trying to help an E.E. friend find the right chip/chip set, as he's very busy and is working for me on the cheap.
So far the S.I. Lab # 2400 with the compaion 3015 is our best solution, but their $22.00 a set.
A $250.00 reward is offered to the guy who can find the most intergrated low cost solution.
DESCRIPTION
A wireline interface to P.O.T.S. requires:
D.T.M.F encode/decode. Caller I.D. function. U.S. and Europe. Voice in/out. Codec is nice, but not required. Modem not required. LOW COST, single chip solution wins!
Sincerly, Joe