bit more info
with the extel service, we were provided with a zte router, but i would love to just have the pfsense box, then have voip through that, or with a device like this behiend pfsense
http://www.ebay.com.au/itm/UNLOCKED-CISCO-LINKSYS-PAP2T-PAP2T-NA-SIP-VOIP-Phone-Adapter-2-Port-Gateway-AU-/251528791178?hash=item3a9048c48a:g:CfsAAOSweWVXdeKy