Sometimes this all sounds so complicated....but it needn't be. I suppose it can vary with the size of your installation.
I use a m0n0wall router on a Covad DSL line. Using m0n0's traffic shaping feature I establish inbound and outbound pipes which are bandwidth restricted to just less than my mesured average DSL rate. I then break my traffic into three priority ques in each direction; highest priority, medium priority, low priority. I assign all IAX traffic in/out to the highest priority que, and map all IAX ports to the * server inside the LAN. In fact, I just used the Magic Shaper Wizard in m0n0, then added IAX specific entries to give it highest priority. The whole process took about a half hour. Just as easy as the Linksys BEFSR-81 that I had before, but more reliable and more controllable. Now to be fair, I only have about 6 phones. I use IAX2 to all my ITSPs and SIP in-house only. My DSL is 3M down / 768k up. Michael On Fri, 06 May 2005 08:37:20 +0200, Jean-Christophe Heger wrote: >I've spent may hours to play with HTB QoS settings on the firewall, but with >absolutely no effect. In fact, this is normal, because the time required to >let a data packet going through the ADSL line will break the voice jitter. The >only right way to handle this issue is to modify the MTU on the router. > >Without setting a TOS for voip, data where going through and voice was >unusable. >With a lowdelay (0x10) TOS set for voip, voice was going through, but data was >blocked. >With a lowdelay TOS and an HTB QoS on the router, data where going through >slowly and voice was scambled. > >After many tests, an MTU of 700 did work quite well. I did loose 15% of >bandwidth for data (twice more overheads), but data and voice may be used >together. > >Those tests have been done on a 256 kbps up stream. > >There is a quite good explenation about this issue on Cisco's web >site, and about they're LFI technology (link fragmentation and interleaving): >http://www.cisco.com/warp/public/788/voice-qos/voip-mlppp.html#link_frag > >Jean-Chrsitophe > > > > >Kumara Jayaweera a écrit : > >>Hello! Everybody!!, >>I want to run VoIP in the same LAN (15 windows clients) which we use for >>surfing the Internet. 6-7 softphones in the same client's machines is 'the >>target'. My DSL is 128kbps, (I can go to 256kbps if required). So, I am told >>to install some QoS's in the LAN to improve the voice quality. Frankly, I >>don't know what it (QoS= Quality of Service) is. I hope you may help me >>giving "Links" to read and briefing me your ideas. >>Thanks to everybody in the list. >>So far my success and progress are your help. >>Thanks again >>Kumara >> >>_______________________________________________ >>Asterisk-Users mailing list >>Asterisk-Users@lists.digium.com >>http://lists.digium.com/mailman/listinfo/asterisk-users >>To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> >> > >_______________________________________________ >Asterisk-Users mailing list >Asterisk-Users@lists.digium.com >http://lists.digium.com/mailman/listinfo/asterisk-users >To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > -- Michael Graves [EMAIL PROTECTED] Sr. Product Specialist www.pixelpower.com Pixel Power Inc. [EMAIL PROTECTED] o713-861-4005 o800-905-6412 c713-201-1262 _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users