Upgrade 3CX to v18 and get it hosted free!

VOIP with VPN

Author image

As we know, dd-wrt could work as the vpn server and client. Except the windows vpn client, there are two other options for client which are dd-wrt router and ATA with vpn client.
We have introduced how to set dd-wrt, and then configure the pptp client in xia302(details of setting could be found in user manual which is available in our “Downloads”). our setting is shown as follows:

VOIP with VPN - Voip-info.org

click”ok”, then the connection will be going on…

VOIP with VPN - Voip-info.org - 1

Well. the connection has set up

VOIP with VPN - Voip-info.org - 2

 

VOIP with VPN - Voip-info.org - 3

If all go well, the xia302 will be found in dd-wrt:

VOIP with VPN - Voip-info.org - 4

Based on the network with xia302 pptp client, we have tested the capability of the vpn in the voip system. Result is satisfying, the connection between pptp client and server is stable, and the connection supports 10 concurrent calls.
If you would like to choose l2tp to be the protocol of your vpn connection, then the Jin310 should be a good choice. The construction of vpn with Jin310 l2pt client is shown as follows:

VOIP with VPN - Voip-info.org - 5

Also we have tested the performance of this kind of vpn. Actually there are a bit differences between two networks. But the differences between protocols themselves should be noted, and how to choose depends on your care.
For connections above, we use dd-wrt vpn router as a vpn server, dd-wrt router can be also used as a vpn client to access small company or call shop.xia304 with dd-wrt is a good option to work as a vpn client:

VOIP with VPN - Voip-info.org - 6

The capability of VOIP VPN is mainly depends on the vpn server. The cost of vpn router, what we used is less than $100 in above networks. The conclusion can be reached from the tests above: vpn could process more than 10 concurrent calls, and the data rate is more than 1Mpbs with about 100ms delay.

If you want to get more powerful vpn connection, it must expand the vpn server’s capability:

1, buy vpn hardware. That would be very expensive.
2, try the linux or window vpn server base on x86 platform
3, find some vpn service provider.

VPN4SIP.COM – Another service to use VOIP adapter (like from Vonage PAP2T-NA) with VPN is from VPN4SIP.COM (http://www.vpn4sip.com), this VPN for SIP solution add a SSL based VPN connection through a standalone small size wireless router between the ISP connection and broadband ATA device RJ45 ethernet port, so all VOIP traffic are well encrypted and tunneled through the high secure VPN channel to public internet without any block or restrictions, perfect for small office or invididual users who want to make broadband phone calls however their ISP limits the Voice Over IP calls.

Related Posts:

Get 3CX - Absolutely Free!
Link up your team and customers Phone System Live Chat Video Conferencing

Hosted or Self-managed. Up to 10 users free forever. No credit card. Try risk free.

3CX
A 3CX Account with that email already exists. You will be redirected to the Customer Portal to sign in or reset your password if you've forgotten it.