-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Nice reading, maybe applicable: Look into next hop resolution protocol, where the dynamic host registers itself at the static host.
http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/stlvp_cg.pdf Martijn - -----Oorspronkelijk bericht----- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Namens neil K. Verzonden: dinsdag 21 januari 2003 20:10 Aan: [EMAIL PROTECTED] Onderwerp: Re: Voice Over Internet [7:61467] I have a couple of questions more. 1) The IP addressing. The Ip address is assigned dynamically by Service Provider and also the running NAT on the router, will it be an issue. 2) In that case VPN would be a better choice or not. Neil ""Bruce Enders"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Neil, > In broad brushstrokes the answers are sort of: > 1. Variable delay is the worst enemy of Voice QoS. Queuing delays are > sometimes very common in ISP-to-ISP connections. Putting Voice traffic > on the Internet is a risky proposition if you have significant > concerns regarding Voice quality. Making sure that each remote has > significant bandwidth for the VOIP traffic is the first step. ISPs > may be capable of providing some levels of QoS, but may be reluctant > to do so. Most ISPs have significantly less queuing delay within their > network than they do across connections to other ISPs. (VOIP across > the same ISP backbone usually results in better than acceptable voice > quality). It is usually the links that connect different ISPs that > create the most problems. I have seen large VOIP implementations that > achieved very good voice quality over a very large geographic area > that was all served by one ISP. (Choose your ISP wisely). > > 2. VPN could hurt voice quality as some concentrators inject delay > into the audio streams. Check the delay specs on any VPN concentrator > you are thinking about using to see how much delay you can expect to > have to deal with. > > 3. Solution? Most new Cisco routers and switches support QoS > configurations that enhance the probability of achieving good voice > quality within a network. I do not know the specs on their VPN > concentrators off the top of my head. > > HTH > Bruce > > neil K. wrote: > > >Hi Guys, > > > >I have a few questions regarding implementing VoIP. > >1) Can I have different remote offices run VoIP if they have (DSL > >access of > >Cable modem access) to the Internet, I mean running VoiP over > >internet as there wouldn't be any QoS.I am not sure about the Quality > >of Voice in that > >case.Also can the service provider of DSL or Cable provide us with > >some kind > >of QoS so that the Voice quality can be improved. > > > >2)Will implementing a VPN solution help in running VoIP and how and > >what are the different solutions and what vendors should I be looking > >at. > > > >3) Does Cisco have a solution for this. > > > >Thanks in advance. > > > >Neil. K. > -- > > > Bruce Enders Email: [EMAIL PROTECTED] > Chesapeake NetCraftsmen o:(410)-280-6927, c:(443)-994-0678 > 1290 Bay Dale Drive, Suite 312 WWW: http://www.netcraftsmen.net > Arnold, MD 21012-2325 Cisco CCSI# 96047 > Efax 443-331-0651 Version: PGP 8.0 iQA/AwUBPi3E4Xdq56XWk+VyEQKRaQCgs+Uul6YIxocqc/XHtZu+YvA++OgAn0Ku gCmGuhIxzZUBQ1A7vG2wvmau =OqwR -----END PGP SIGNATURE----- Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61515&t=61467 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
