VoIP 101 Training has extensive experience with the successful design, deployment and support of Voice over IP (VoIP) networks, IP-PBX systems and traditional business phone systems, and provides the following VoIP resources for the benefit of our clients:
VoIP 101 White Paper - What you Need to Know before Deploying Hosted VoIP
VoIP 101: Best Practices Table for LAN/WAN Configuration Options
TCO Cost Comparison: Premise Based PBX vs. Hosted VoIP Phone Systems
SIP Training by TECHtionary.com
Avaya Certified Installation Specialist (ACIS)
Please contact us for sample Visio Network Diagrams for VoIP.