[asterisk-users] Networking Concept

[Faraz Khan]

In pakistan they have protocol scanners mounted on all the 4 fibers that
enter and leave pakistan. They can detect VOIP usage by upload/download
patterns / etc. They have invaded and arrested many illegal 'calling
card' operators in the past. Im sure the same is true for china. However
I dont know how they can detect VOIP traffic in a encrypted tunnel.

On Tue, 2009-10-06 at 12:38 +0300, B.Masoud @ SH wrote:
> How they can?
> 
>  
> 
> From:asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Leif
> Neland
> Sent: Tuesday, October 06, 2009 12:23 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] Networking Concept
> 
> 
>  
> 
>  
> 
> 
>         ----- Original Message ----- 
>         
>         
>         From: B.Masoud @ SH 
>         
>         
>         To: 'Asterisk Users Mailing List - Non-Commercial Discussion' 
>         
>         
>         Sent: Tuesday, October 06, 2009 1:14 AM
>         
>         
>         Subject: [asterisk-users] Networking Concept
>         
>         
>          
>         
>         
>         Hello,
>         
>          
>         
>         I would like to know how Asterisk deal in this case:
>         
>          
>         
>         Assume I have a Main Asterisk Server located in UK, and
>         another box that have PSTN interfaces located in China, now
>         the purpose is to FW calls through PSTN.
>         
>         Assuming I have a client who is calling from Japan to my main
>         switch in UK and he is calling China, (japan have latency
>         around 500ms to UK and 100ms to China),  how asterisk will
>         deal with this call?? Will his latency be JAPN->UK + UK->China
>         (around 1000ms !) or only from Japan to China???
>         
> 
> Be sure not to run into trouble for running inlicenced ip-telephony in
> China, so the government can't (as easily) intercept your calls.
> 
>  
> 
> Leif
> 
>  
> 
> 
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-- 
Faraz R Khan
CEO
Emergen Consulting Pvt Ltd
www.emergen.biz
+92.21.529.0381 (3 lines) x200