Issue : VoIP port Blocked, how to make calls in such case


I have implemented Asterisk based PBX. Its working fine.

I can make successfull calls through it.

But, in some country VoIP is blocked. From there I want to make calls.

Should I need to create some VPN kind of a thing ?

or Should I need to impletement the VPN in IP phones or what ?

please suggest me some way.


A VPN is a convenient way to get around many firewall restrictions. There aren’t many phones that support VPN inside of the phone. Snom manufactures some phones that do.