Testing with online backup paused, I found jitter @ .5ms, packet loss @ 0, upload speed @ 771k, & QoS @ 95%.
With the backup running, I found jitter @ 112ms, packet loss @ 0, upload speed @ 389k, & QoS @ 75%.
I know nothing about jitter, but it sure appears to be the problem. Anyone have any ideas on how to correct?
FYI--I changed the default ooma upload speed to 600K, which is conservative. No other changes. cable modem > ooma > router
I have move ooma to behind my router for a long while to really offer any inside of setting QoS on the telo. Hang in there, there are quite a few folks with the same setup as your, and certainly some will offer some tips to help with setting QoS on the telo.
BTW--further testing shows jitter while backup running is up to 243 ms, with 2% packet loss. I need to find a way to control so these 2 essential services can coexist.
Upload capacity is critical to the quality of your voice getting to Ooma's network. Your online backup is swamping that capacity and leaving almost nothing for Ooma while it is pushing GB of your data through that coffee-straw sized upload pipe! If QoS or putting the Ooma device behind a router aren't desirable options, maybe you could set up your online backup to do it's pushing of bits overnight, while you're asleep and almost certain to be off of the phone?
Formerly employed at another VoIP company.
My opinions are my own.
cable modem > router > oomaworksong wrote: cable modem > ooma > router
P.S. The backup services that are worth their weight all have the option to 'lower' their operational and delivery-speed (Some call it, "CPU overhead reduction"). Use that feature as well.
ooma hardware: core (hub/scout) and Telo
Premier, Lifetime Member
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That is from carbonites website, other backup systems should have the same type of functionality which would make backups work with VOIP servies. Once I changed mine to low priority it was a big improvement.What does the 'Low Priority' option do?
The Low Priority option causes Carbonite to slow down its use of the Internet so as not to interfere with other Internet-intensive hardware/software such as VoIP telephony (e.g., Skype and Vonage).
Carbonite reduces its packet size from 8,000 bytes to 1,400 bytes and sends only one packet at a time instead of streaming multiple packets.
Cox / Ooma Telo / Apple AEBS (Time Capsule) / Ooma Handset / Premier
CompTia A+ CE
MCITP: Windows 7 Enterprise