It's hard to get on hold of OBi110 at $50 due to its supply issue.
Recently I bought a SPA1001 at eBay to replace a defective SPA2000. I was thinking of OBi110 but it's out of stock most of time and I need a replacement unit quickly. The other choices at time are SPA2102(almost same as SPA2000) and SPA3102. I like the fact that SPA1001 supports 2 SIP lines in and out with one phone connections. It's also simple to configure as I know SPA2000 already. For me, Obi110 would require a bit more learning curve. And it doesn't support two line in.
大師 fitwxc also recommanded SPA1001 before. The only problem is that most if not all SPA1001 available today are 山寨貨. I was skeptical on purchasing a SPA1001 from ebay as some buyers in the forum complained about audio quality before. Given its low price($32 w/ shipping), I took the chance and bought one from a US seller with good rating. I believe he's also a Chinese. It turns out to be good. Good voice quality and it's warm to touch, no overheating issue.
