2. Is the gateway hardware- or software-based?
Most businesses buy hardware-based gateways because they’re perceived to off er
stronger security protection, are more reliable, don’t rob computing power and
provide better connectivity. The software type, on the other hand, tend to cost less
and can be easier to update and modify. The choice is up to you.
3. What is the chassis size?
If you’re considering the purchase of a hardware gateway, the unit’s chassis size is
crucial since it typically dictates the product’s packet processing capacity. Sluggish
processing leads to poor VoIP call quality, user complaints and, potentially, lost
business. So be sure to purchase a gateway that can accommodate your VoIP’s
system’s current call load as well as planned future growth. Which leads us to the
next question ...
4. How many simultaneous VoIP calls can the gateway handle?
It’s important to select a product that can keep pace with the network’s call load.
A good rule of thumb is to purchase a gateway that can handle a call load that’s at
least 20 percent greater than existing traffi c levels.
5. How many foreign exchange offi ce (FXO) ports are provided?
VoIP gateways convert the PSTN signal to a VoIP signal. For analog lines, an FXO
port is needed. Until recently, most reasonably priced ($300 to $500) VoIP gateways
had only one or two FXO ports--suffi cient for home use, but too few for most small
businesses and remote offi ces. Make sure that any gateway you’re planning to buy
at has at least four FXO ports. |
