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VoIP VS. PSTN Phone	User Benefits
VoIP Call Applications	Advanced VoIP Router Applications
Hardware Connections	How to activate VoIP calls
Billion VoIP Products & Feature Comparison Table

How to activate VoIP calls

Step 1
Register a SIP number
from any ITSP

Step 2
Enter your SIP number information
in GUI of the router

Step 3
Start to make Cost-saving
VoIP phone calls

Education

Billion VoIP Wireless ADSL2+ VPN Firewall Routers Series - surfing Internet, making phone call, watching TV, and saving money