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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.
Server Stats
  • Execution time: 0.40s
  • Memory usage: 2.19MB
  • Database queries: 33
  • GZIP: Disabled
  • Server load: 1.07

Linksys WRT54G

The Cisco/Linksys WRT54G
Linksys Product Page

Because this router has Linux based firmware its possible to replace portions of the firmware with custom programming. Of particular interest to VOIP users, many of the replacement firmware packages add much more usable QOS to the router than the official Cisco/Linksys firmware.

WARNING: newer retail versions of this device no longer support Linux (but read on; there is hope).
As of version 5 of the hardware of the WRT54G(serial numbers starting with CDFA), Cisco has ported the platform to VXWorks, which is closed. See the OpenWRT Table of Hardware for more information on which devices run OpenWRT. In response to community pressure , Linksys also announced that they have released a version (dubbed Linksys WRT54GL) that is based on the version 4 hardware and will run Linux.

Since firmware release: 3.x.x from Oct 2004, limited QOS is now supported by the vendor on all versions of this router.
  • Linksys FAQ on how to configure QoS for this router

Cisco/Linksys download page for WRT54G

The Cisco/Linksys WRT54G
Linksys Product Page

Because this router has Linux based firmware its possible to replace portions of the firmware with custom programming. Of particular interest to VOIP users, many of the replacement firmware packages add much more usable QOS to the router than the official Cisco/Linksys firmware.

NOTE: There is a known SIP registration problem with the WRT54G v5 & v6 with firmware versions below 1.00.6~~:
A bug in the Linksys/VxWorks firmware version 1.00.6 on the WRT54G v5 and v6 can cause SIP registrations to fail regardless of NAT settings in Asterisk or on the phone/ATA. This has been verified with a Cisco 7940 running SIP 6.3 and with X-Lite. Updating to the latest firmware will fix the problem.

The 3rd party replacement firmware listed below offer additional features and more elaborate QOS.

Custom Replacement Firmware
  • sveasoft - adds QOS and other enhancements. Notice that the version 4 has an unstable DHCP server which mandates a reboot every few days. This bug is said to be found and corrected in the forthcoming version 6.See The Individual's Slashdot Journal For GPL source and binary download mirrors.
  • OpenWRT - Linux distribution for WRT54G, small core, with many optional packages including Asterisk!.
  • Wifi
  • EWRT
  • HyperWRT - HyperWRT goal is to add a limited set of features to the latest Linksys firmware, extending its possibilities but staying close to the official firmware. Feature includes power boost firmware, QoS, command shell, startup and firewall script.
  • DD-WRT - An implimentation originally based on Sveasoft Alchemy pre5, but incorporating many features of OpenWRT as well as RFlow traffic management, RADIUS authentication, SAMBA filesystem, internal FFS2 Partition and a working WDS system.

The Linksys WRT54GS is a newer model with additional memory and other improvements.
Different firmware is required, but most of the replacment firmware options are available for both models.

It is possible to run Asterisk on the WRT54G — see: Asterisk Linksys WRT54G
You can also use the SIP Express Router — consider the SIPatH Project

Cringely article on what you can do with a WRT54G
DSL Reports Forum Thread on custom firmware for the WRT54G
Broadband Reports Forum Thread sveasoft compared to wifi firmware

WRT54G Sites

See Also:

Available from:
  • Australia - * VoIPShop Australia Australia Wide Overnight Shipping
  • Belgium - VoIPsolutions Delivery All of Europ; Reseller prices available
  • Worldwide - * .e4 Tech Unbeatable Volume Discount - !

Created by jht2, Last modification by Lorenzo on Tue 20 of Mar, 2007 [14:08 UTC]

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