I've been using TP Link POE switches with good success and they are inexpensive.
Model is TL-SF1008P Newegg has them.
Gives you 4 POE and 4 standard, great for locations where you have scattered batches of phones, hate those damn power adapters.
The problem with "cheap" POE switches is they have the potential to create weird problems down the road. If for price you need to go that direction, I get it. If your going to have a service contract with the customer, I think you should not use these "cheap" switches. I have been down this road before, and I never use the "cheap" switches, what the client will save as opposed to problems and costs to resolve stuff, just makes no sense IMHO.
By the way, I am not commenting on your switch, never used it so have no experience on it. I am just saying as a blanket statement about "cheap" POE switches.
POE gear used to be all over the map in terms of quality, capability and reliability but they seem to be getting a lot better. I see more and more of the lower-end products including sufficient information about the switch's current ratings and have usually found them to be accurate enough for government work. Whether POE phones or WAP/repeaters, I just grab their power requirements and figure out how many of them I can drive off a given switch and then subtract one to be safe. Sometimes you can't drive the number of devices the ports support but you can make it work.
Other times I insist the customer spend for a ProCurve. =)
HP's are great, but if you want a greatly improved POE switch for the money go with Netgear's Gigabit POE/POE+ offerings. Can't beat the price and they work fine.
IT guys often insist on Cisco or HP though.
We use the netgear all the time, but like noisycow said we get a lot or remarks from the IT guys, they believe if the don't spend a fortune on the gear it is no good.
Hardware is coming down all the time and there is a price for a switch, depending on it being 24,48 poe or not that you are paying for a brand name
Or skip the whole PoE switch issue, and go external PoE injector. PoE Texas has a variety of units and generally has their act together. Good people.
example:
https://www.poetexas.com/collections/all-products/products/poe-16-1u
I avoid injectors whenever possible. Makes installs of each phone messier with additional cables and it seems like you are always trying to scrounge to find that one additional power outlet under a table or desk and trying to "hide" the power brick. If only a couple of phones, I understand. If 4 or more, just get a PoE switch and save the hassle.
Personally, we've been using Adtran NetVanta switches, and have been very pleased.
This thread is 3 years old...perhaps things are different since then?