I am helping a client spec out a couple of new firewalls and was looking for recommendations here.
The client presently operates at one site with a SonicWall TZ-210. There is a 100/20M Comcast connection for primary use and a T-1 line used in case the Comcast connection goes down. There are about 20 users at the primary location. We are looking at replacing the SonicWall as it is reaching End of Life status.
The primary site has VOIP phones that use the LAN to connect to the phone system (on site) which gets phone service through a PRI adapter. They are seriously considering moving to an all VOIP system.
The client is adding a second location which is planned to have a fast connection through Comcast and a point-to-point T-1 for VOIP phones and for backup. We will set up a VPN between the locations for general network access and for VOIP phone use. If they go to a full VOIP arrangement (dropping the phone box at the primary location), the phones would likely get service through the internet connection and not through the VPN. The fast (100/25) connection speed was selected not because of internet speed but for the speed between the two locations. The 25M upload speed was the fastest available at these locations.
I've worked with the Cisco ASA 5505 somewhat and am giving it serious consideration here. I'm very interested in comments about whether or not this would be suitable. In addition, any recommendations about an alternative would be welcomed.