This note explains how to make phone calls through over a VPN tunnel. Take the following network for an example: There's a SIP account "777" on Vigor2760's LAN, and another SIP account "555" on Vigor2830's LAN, Vigor2760 and Vigor2830 are connected by a VPN tunnel.
Before configuring VoIP, please check VPN status in VPN and Remote Access >> Connection Management to make sure the VPN is online.
1. Go to VoIP >> SIP Accounts, and click an available index to create a SIP account, and edit the account as follows:
2. Go to VoIP >> DialPlan >> Phone Book and click an available index, edit the phone book as follows:
3. Similar to step 1, create a SIP account on Vigor2830
4. Similar to step 2, create a Phone Book with the information of SIP account on Vigor2760.
Now, we can make VoIP calls through the VPN tunnel!
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