A voip gateway will have 2 ports. Each port can have it's own telephone #, so you can have 2 seperate phone lines from the one gateway. Assuming you mean the gateway to be the modem type unit that is sent out for you VOIP line. I think with some providers, each line in the port can have a couple of alternate #'s assigned to each. So that you can 3 #'s total on each port, however it's only the main # that will have outbound calls on. So you can have total of 6 #'s available for each gateway.
As for the VOIP Switch question, I'm not sure what you mean by that.
Hope that helps you somewhat.
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A voip gateway will have 2 ports. Each port can have it's own telephone #, so you can have 2 seperate phone lines from the one gateway. Assuming you mean the gateway to be the modem type unit that is sent out for you VOIP line. I think with some providers, each line in the port can have a couple of alternate #'s assigned to each. So that you can 3 #'s total on each port, however it's only the main # that will have outbound calls on. So you can have total of 6 #'s available for each gateway.
As for the VOIP Switch question, I'm not sure what you mean by that.
Hope that helps you somewhat.
Rubylynn50