
We are huge fans of Adtran. Excellent products. The TA900 series is a real workhorse, a powerful SIP toolbox that can also deliver FXS and PRI to legacy gear. The Netvanta 3120 is great for straight ethernet environments but lacks a console port which is a minor annoyance. These will both handle SIP very well as well as firewall, VPN, etc. Warranty is 10 years. We've had reliability problems with Edgemarc, they require a pretty ugly proxy-arp hack to deliver pass-through data without NAT, and the annoyance of crippleware where you buy a fully featured box but then have to pay extra for each feature already built in is irritating (and expensive). Edgewater is also not too friendly with regard to making adjustments to boxes in service. Change a data firewall rule and you get a pop-up box that lets you know it will drop all voice calls (and it does!). No real command-line interface to speak of, no human-readable configuration files, not easily backed up with RANCID or other automated tools. -- Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV