The edgemarcs do a QOS and such for the voip calls some oe them even have capability of being a VOIP endpoing and have 1-2 FXS ports for analog phones or a PBX etc.
It just makes it easy I mean litterly took me 15 min to configure one to get voip calls going and the QOS was great to not have to mess with..
493 AH will do QOS and stuff like that but you have to really know what you are doing with marking packets, setting up QOS, and so forth wheras an edgemark you plug in your IP of on your WAN and then set up what you want it to do either forward SIP traffic to phones or sip PBX and your done no having to mess with QOS settings unless its something really specific you need to tweak. Out of the box its pretty much ready to go..
Just makes it easy to set up..
I dont think the 4300 P is current I dont see it in my current product from my vendor. But I do believe it has POE built with a T-1 interface. To do PRI or T-1 data.
The 493 AH would never be able to to do conversion of T-1 PRI or Data thats why they are using the 4500P most likely.
How is the network layed out in regards to how the 4500 and the 493ah? is the 4500 before or after the 493 and what problems are they having?--
ComTrain Certified Tower Climber.
Wireless and IT consultant.
Proficient in Mikrotik