I was first made aware of Sangoma cards when a Digium TDM400P that I purchased simply would not work with the motherboard I was using. I had two options, replace the very nice motherboard or find a different/better card. I ordered a single A200 and it put it in the same system that had problems with the Digium card. Things worked flawlessly, not even so much as a hiccup. I had a few questions at first about the installation process so I e-mailed Sangoma. David replied to my question the same day, which was a holiday! I was very impressed.

A few weeks after my A200 experience, I came across another issue with faxing over a Digium TE210P. Because I had a very good experience with the A200 and David assuring me via e-mail that they supported fax, I decided to give the A102 a try. At first, faxing didn't work, but this was simply because I neglected to put "faxdetect=both" in my zapata.conf — which simply disables echo cancelation when fax tones are detected. Again, I e-mailed David and he pointed me in the right direction within a few minutes of my first e-mail.

At another site, I was having many HDLC aborts on both of my PRI spans and dropped calls. I worked with the telco for many days, but they assured me the circuit was clean. Digium suggested many of the typical solutions, disable ACPI, HT, APM, and all other hardware.. ;) I tried all that and still had HDLC aborts. On a hunch, I purchased yet another A102. After installation at this site, I've had no errors and no dropped calls.

Long story short, I've only been using Sangoma for a short period of time, but they get my seal of approval. I think I'll start going with Sangoma first and avoid the problems up front.

Thanks Sangoma, thanks David!