[Asterisk-Users] Ringer Equivalencies?

[Kevin P. Fleming]

Matt Davies | MattDavies.Net wrote:

> The lines come in over T1 combined with data channels. I'd like to use a
> separate firewall than a linux firewall right now.

If they are using an IAD (Larscom/Vina eLink, Adtran 616, or 
equivalent), they can drop the data channels off on an Ethernet port and 
leave the voice channels for you on the IAD's downstream T-1 port. You 
can then use whatever firewall/router you want, but preserve the digital 
voice channels into your Asterisk box.