Yes, this would definitely work. J'm trying to avoid running phone lines the distance between the existing demarc and the asterisk server :-)Barry D. Hassler wrote: > Any further experience with the 3102? I'm looking for a solution to > connect 2 CO lines and a set of 2-line phones to my asterisk server > (along with a bunch of SIP phones). Would 2 of these work well for that? > > Hopefully no echo problems! That would kill this project? I'm still > searching for one peice of hardware that would have 2 FXO and 2 FXO > ports on it, but haven't stumbled on it yet.... The only way to know for sure whether the spa will provide reasonable service is to try it on the actual pstn line to be used. There is no other way for anyone to tell you anything different. The quality of the audio & echo is 100% dependent on the exact pstn line characteristics, etc. Two other reasonable alternatives are: Digium TDM card with two fxo and two fxs modules. Sangoma A200d card with one fxo module (has two lines on it) and one fxs module (has two lines on it).
But, it would probably be the best solution.
Actually, as I look further, I don't think the 3102 will work in this environment at all for what I want. (incoming FXO calls go to Asterisk server, and through its dial plan, which might include ringing the analog phones on the FXS ports).
I did find AudioCodes MediaPack MP-114, which has exactly the configuration I want (2 FXO, 2 FXS), but have to be registered to get any documentation on the units.
2 Grandstream HT-488's looks like a possibility too....
I think I'll just run the phone lines into the server, and add more cards there.... :-)
The only way to know for sure whether the TDM card will provide reasonable service is to try it on the actual pstn lines, just exactly like the spa box. Same issues as the spa; some pstn lines work fine, others have echo that nags users. The Sangoma card with h/w echo canceler just plain works, but is probably the more expensive of the alternatives. The Mediatrix 1204 seems to have excellent echo characteristics, but it is likely the most expensive approach for small systems.
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