My company is using Sprint's Internet backbone for VoIP. We initially started our VoIP project as VoFR several years back using their FR network but migrated to IP when we were able to get a good deal on full IP T1s to every office.
VoIP works pretty well across the backbone. Every office is no more than 2-5 hops away from each other. The problem with going across a backbone is that you don't have end-to-end QoS and so we still experience some voice dropouts at times. Something Sprint just started offering that helped out a lot is their CoS option that for a $150 one-time setup fee per site, they will apply a policy map to their gateway interface so that as traffic crosses the slowest part of the link (the T1 between you and Sprint), voice traffic will get priority. Of course, that's something new they're offering and not all of their routers will support that yet. We had to have a circuit moved from their Stockton to their Anaheim POP because the router we were on in Stockton did not support this yet. We've played with a Sitara QosWorks box and got a lot better voice quality than we ever did when we let the 3810s handle QoS, but again, things still weren't perfect "pin-drop" quality. Anyway, Sprint is pretty good about not letting their backbone get too congested before building out, so the cause of problems is going to be traffic getting jammed up on your T1 between yourself and Sprint and not the Sprint backbone itself. James -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ryan Finnesey Sent: Sunday, June 15, 2003 1:48 AM To: [EMAIL PROTECTED] Subject: Sprint Internet Backbone and VoIP? [7:70665] Is anyone using the Sprint Internet backbone for VoIP? If so how is it working and are you running the VoIP just in the states or outside of the states? Ryan Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=70729&t=70665 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
