Hey Peter have you seen SwitchPI.org?


On 3/26/13 3:52 AM, "Peter P GMX" <Prometheus001@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
  
 
 

---

_________________________________________________________________________
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Ken
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_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting@freeswitch.org
http://www.freeswitchsolutions.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
http://www.cudatel.com

Official FreeSWITCH Sites
http://www.freeswitch.org
http://wiki.freeswitch.org
http://www.cluecon.com

FreeSWITCH-users mailing list
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-- 
With kind regards
Peter Steinbach 

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