I am looking for recommendations from those of you who have had hands-on deployment of VoIP in a SMB enviornment. Unified Messaging included.
Systems Infrastructure: Windows 2008 ADDS, Exchange 2010 SP1
Two sites 25 users each; connected via IPSEC VPN tunnel; ISP UP speed = 1.5 to 2 mbps
Require that if no VPN link then each site can have fully functional phone system
Each site has 8 POTS lines
Smaller DSL sites 1 to 5 users need to connect and use same system too
Not a very big budget, so am looking for a solution that is true SMB friendly, Web based management