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  • Juan Ortega, Thu 15 of May, 2008 [10:33 UTC]: Hi everybody, I'm Juan, an ITCom student, and I need to know what basic elements I need to create a VoIP network. Can anybody helpme, please?,Thank you very much
  • gineta, Wed 14 of May, 2008 [03:58 UTC]: any here not fine the configuration of firewall juniper -screem for VOIP asterisk????
  • Anoop Prabhakaran, Tue 13 of May, 2008 [12:16 UTC]: I am developing Asterisk IVR, Whenever i make a internation call to the IVR system, the DTMF is not getting detected properly, this happens only for the first time, second call onwards system works fine. why this is happening
  • joe, Mon 12 of May, 2008 [04:27 UTC]: Is there an opensource browser based softphone, or a system like Busta where everything is not manages through their website?
  • Nick Barnes, Fri 09 of May, 2008 [11:36 UTC]: Christopher - yesterday I tried an Asterisk install on a CentOS 5.1 box with stock GUI and it all worked fine. Sorry I can't help.
  • aero, Fri 09 of May, 2008 [08:20 UTC]: can someone help me out on this, i tried to play some sound files on my asterisk box and this is the error message i got. WARNING[4429]: format_wav.c:169 check_header: Unexpected freqency 22050 May 8 11:17:39 WARNING[4433]: codec_gsm.c:194 gsmtolin_fra
  • Christopher Faust, Thu 08 of May, 2008 [14:15 UTC]: I beleive that I may have to change something in the xserver configuration. Please advise
  • Christopher Faust, Thu 08 of May, 2008 [14:14 UTC]: Everything was perfect. In the bios I have increased the memory allocated Still receive input not supported on my display.
  • Christopher Faust, Thu 08 of May, 2008 [14:13 UTC]: This would not be my main box. I am doing some testing to see if I can install zaptel and asterisk 1.4 on a full centos 5.1 box with development software Its bizzare, because before I went through the asterisk and zaptel installation everything was perfe
  • Nick Barnes, Thu 08 of May, 2008 [13:44 UTC]: Christopher - I can't see any way in which an Asterisk installation would muck your GUI, but remember that it is advised not to use a GUI on an Asterisk box anyway.
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IAX_OpenVPN

It's possible to run an IAX2 channel over OpenVPN.

Howto:


  • Place the following on both ends of your trunk. Switch the IP address on the ifconfig line so the second file is reverse.

openvpn.conf

dev tun
float
remote 3.4.5.6
ifconfig 10.0.0.1 10.0.1.1
port 1234
secret /usr/local/etc/openvpn/secret.key
verb 5
daemon

  • Now setup your Trunk on both ends

iax.conf:

[iax-vpn]
type=friend
context=from-trunk
username=user
authname=user
auth=rsa
qualify=yes
inkeys=iaxinkey
outkey=iaxoutkey
host=10.0.0.1
disallow=all
;allow=gsm
allow=alaw
allow=ulaw
trunk=yes
notransfer=yes
deny=0.0.0.0/0.0.0.0
permit=10.0.0.1/255.255.255.255

This adds some extra security with an rsa key on the IAX trunk

I've experienced minor packet loss over but no dropped calls. The trunk will show the following error, "TOO LAGGED," but quickly report, "now REACHABLE." The source of this problem is related to running out of bandwidth on my DSL connection. Since I turned on QoS the error report happens less often. Calls can get a bit of jitter when this problem is occurring, but I'm happy to report I haven't experienced drop calls.


Feb 5 04:51:59 NOTICE17712: chan_iax2.c:7238 socket_read: Peer 'sc-trunk' is now TOO LAGGED (2180 ms)!
Feb 5 04:52:09 NOTICE17712: chan_iax2.c:7232 socket_read: Peer 'sc-trunk' is now REACHABLE! Time: 97


See also


Created by Chris Widger, Last modification by JustRumours on Tue 08 of May, 2007 [11:07 UTC]

Comments

Comments Filter

VPN for VoIP Blocking

by jenniferhan on Wednesday 12 of December, 2007 [04:00:20 UTC]
Somebody use VPN to solve the VoIP Blocking issue. But it seems not a good way to solve the voip blocking issue. Because VPN will take more bandwidth and will take effection on the Voice Quality

Currently I am using the VGCP, a new solution to solve the VoIP Blocking issue. Following is theirs website:
http://www.speed-voip.com/index-36.html

If any of you have interested, you may try to use it to solve your VoIP Blocking problems. Thanks.

Andy
andywong-01@hotmail.com

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