[Freeswitch-users] FreeSWITCH on Raspberry Pi - OpenVPN gateway, B2BUA

[Ken Rice]

Hey Peter have you seen SwitchPI.org?


On 3/26/13 3:52 AM, "Peter P GMX" <Prometheus001 at gmx.net> wrote:

>    For those who might be interested:
>  
>  During the last days we built a B2BUA based on Freeswitch and Raspberry PI
> Ver B which connects to a central server via OpenVPN in order to encrypt voice
> traffic and circumvent NAT issues. We plan to use it during travelling and to
> have VPN access in the home office. The costs for this are relatively low
> (~75$).
>  
>  We installed
>  
>  
> * Raspbian 
> * Freeswitch compiled native from GIT (this really takes a while)
> * OpenVPN 
> * Dnsmasq for eth1 side
> * isc-dhcp-server for eth1 side
> * tftpd-hpa for eth1 side
> * a second LAN interface eth1 was done by a Delock USB 2.0 to LAN interface
> (about 20$), works out of the box
> *  
> * iptables firewall for NAT traversal
> *  
>  
>  This worked pretty well. We were not sure beforehand, whether the USB to LAN
> interface would work nicely, but in fact it did.
>  
>  CPU usage during a single call is
>  top - 10:47:34 up 39 min,  1 user,  load average: 0,64, 0,40, 0,24
>  Tasks:  70 total,   1 running,  69 sleeping,   0 stopped,   0 zombie
>  %Cpu(s):  6,5 us, 12,1 sy,  0,0 ni, 64,9 id,  0,0 wa,  0,0 hi, 16,5 si,  0,0
> st
>  KiB Mem:    448776 total,    94656 used,   354120 free,    13096 buffers
>  KiB Swap:   102396 total,        0 used,   102396 free,    42464 cached
>  
>    PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM    TIME+  COMMAND
>   2785 root      -2 -10 28328  14m 4844 S   5,3  3,2   0:30.45 freeswitch
>   2651 root      20   0  5800 3052 1848 S   3,0  0,7   0:07.73 openvpn
>   3051 pi        20   0  5096 1256  968 R   0,7  0,3   0:01.97 top
>  
>  4 GB CF card was about 75%. Codec was G711.
>  The load was mainly generated by the USB-to-LAN adapter. Maybe someone has a
> better solution for this?
>  
>  At the end we were impressed, how easy this was to set up.
>  So now we have an easy VPN-Router/B2BA which allows us to
>  
>  
> * connect a PC somewhere and tunnel all traffic via VPN
> * connect a SIP phone somewhere and tunnel all VoIP traffic via VPN
>  
>  We did this with an OpenWRT Box before, but this is much more easy to handle.
>  
>  Best regards
>  Peter
>   
>  
>  
> 
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> 
> 
> 
> 
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> http://wiki.freeswitch.org
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> 
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-- 
Ken
http://www.FreeSWITCH.org
http://www.ClueCon.com
http://www.OSTAG.org
irc.freenode.net #freeswitch

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