What's a good ATA adapter to use with Raspberry Pi?

_agx_
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I'd like install Asterisk on a Rasberry Pi, and hook it up to a PTSN line. From what I've read, I'll need an ATA adapter.  Any recommendations for a good adapter, preferably from personal experience :) ?
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Commented:
I use and recommend the Obihai OBI110. It is much better than the Linksys SPA ATAs and is probably in the price range you are looking for (well under $50). It also has bonus features like Google Voice connectivity and such. Caller ID is pretty reliable with it as well.

I have two of the 110s in use currently. One at home for my personal PBX and another in a small production environment hooked to a Raspberry Pi. (Used in an alarm system---makes alarm emergency calls as well as weekly test calls.)

The next step up from the OBI110 is probably something like a Multitech MultiVoIP unit (I use those too), or an Adtran 624 with FXO ports. But cost goes up rapidly for these and other professional ATA units.
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Commented:
Thanks for the response.  

Yep, I don't need a professional ATA for this. From what I've read I was leaning towards either a Linksys or Obihai. Mind if I ask what you didn't like about the Linksys?  Also, which type of Obi? I've saw several on amazon yesterday, but wasn't really sure about the differences. I assume they'd all get the job done, just +/- a few capabilities.

- OBi110 Voice Service Bridge and VoIP Telephone Adapter
- OBi100 VoIP Telephone Adapter and Voice Service Bridge
- OBi200 VoIP Phone Adapter, T.38 Fax
Commented:
Hi!

The only Obihai device you would be interested in is the OBi110. The others only have FXS ports, not FXO (the 110 has both). You need an FXO port to be able to connect to a PSTN line. FXS ports are for plugging analog phones into your ATA.

I have personally never used any Linksys ATAs with FXO ports, however I have heard many people have had echo issues with them. Some people have had no trouble, but YMMV. On the other hand, I have never once had echo issues with my OBi110s, nor have I heard of others having issues, and I have heard several accounts of people using Linksys ATAs (mostly the SPA3102 models) that had issues and their issues stopped when they switched to the OBi110.

So basically, the Obihai units are just better ATAs. :-) If you are just planning to use the setup to learn and play with, then a Linksys (or another brand) may be fine, but otherwise I'd go for the Obihai.

Let me know if you have any further questions and I'll be happy to answer. Have a blessed day!
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Commented:
Gotcha.   I missed the bit about the FXO/FXS ports when looking over all the different adapters.

>> Some people have had no trouble, but YMMV

Always amazes me no matter what the product, it'll work great for some people and be a total lemon for others ;-)

I'm probably going to try the OBi110.  A friend is thinking of getting one too, so I can test drive it and let them know what I think.

Thanks for the explanations. I appreciate the help!

Commented:
No problem. Anytime :-)

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