Summary: It could do with more FXS ports and Gigabit ethernet, but hey, you get what you pay for.
Pros: Cisco makes a well priced, relatively feature-rich little ATA which is perfect for converting older analog phones to use in VoIP situations. This isn't something I would recommend for large phone systems such as when trying to adapt an entire analog PBX, but rather for home and small office envir...
Cons: I would not recommend using this to adapt old analog fax machines, the calls typically get dropped part way through and multi-page faxes will drop pages like crazy. I recommend a software VoIP faxing solution instead.
Summary: If you're tech savvy and don't "need" to utilize the WAN "pass through" on this unit, for the price it's a cheap solution. If you're a novice, you will have a difficult time configuring this device.
Pros: Cheap, highly configurable, size.
Cons: This unit performance is very slow, it has a hard time if you try to use as a internet pass through barely handling 40mbps. Configuration for simple and basic SIP was difficult to say the least, had to read multiple forum and q&a just to figure out where to put SIP domain, usr, pw. Management int...
Summary: Would not order from this supplier again. Taking the chance on ordering parts without ALL items included in the packaging would make the purchase worthless
Pros: price and shipping was acceptable
Cons: two of the three ata's ordered did not have all the components for the power cord, which makes the power adapter for the device useless. With out the insert for the wall plug these devices are useless. Luckily we had extra ac adapters of the same amp and voltage on hand.
Solid, reliable ATA. Never found a better one, especially at this price.
Jon Daley, Amazon
3 February 2015
Summary: This is probably the 6th or 7th SPA122 or 121 router/ATA that I've bought. I've never had one fail, but just keep giving and selling them to others as I've never had any issues. There was a caller-id bug a couple years ago, but I reported it on the forums, and they turned out a beta-firmware for me...
Summary: I've had experience with several devices like this over the years and this is my favorite one yet. Yes, there are TONS of options, but the wizard mode works great, and saves a lot of time. I'm running PIAF, but all asterisk systems should be an easy connection.
Summary: its better than Granstream ht702 but not by much. If fact I believe they share the same weak processor which is a DSP processor. Yes I know DSP stands for digital Sound Processor but it also a name brand of processor as well.
Pros: Once the firmware is upgraded to version 1.3.3 or higher there are no issues. I have ran 2 G.711 calls concurrently with no issues other than a bit of minor lag but it did not affect call quality just the decode lag went from 120ms to 160ms.
Cons: Minor lag occurs when having 2 g.711 calls concurrently from 120ms for single call to 160ms when having 2 calls. Processor could be stronger to deal with this. Also only 32mb of ram which after device loads only 10mb remains. Would have gladly paid an extra 20 bucks for a processor in the device ...