Voices choppy in upstream direction
BigJim_McD:
Quote from: BobN54 on January 08, 2015, 08:31:46 am
Quote from: drgeoff on January 06, 2015, 11:17:48 am
1.5 Mbit/s should be more than enough not to induce chopping. But how are you measuring that? What is the actual rate the Obi is getting?
I used a speedtest site to get the up/down speeds. How can I go about determining the actual rate the Obi is getting?
The ISP appears to be Verizon Business DSL, which is consistent with the 13 down/ 1.5 up in the speedtest.
BobN54, I suggest that you run a test using the: "8x8 VoIP Test" at: http://voiptest.8x8.com/voip.php? that makes the following claims.
"This Online Testing Utility will open a socket-connection to your browser and pass simulated VoIP Traffic to your home/office computer. This test measures the quality and performance of your Internet connection between your home/office network and the 8x8 servers."
You can select the "Codec" type to test, either G.711 (90 Kbps) or G.729 (30 Kbps). You will be given a "Connection Summary" that includes "Jitter" and "Packet Loss" in addition to download and upload speed.
SteveInWA:
Note that 8x8 is using Visualware's testing system. I suggest going directly to Visualware's website to run the test, which will allow you to select different endpoints around the country (or world, for that matter), to run a variety of tests. This will give you a more balanced view of performance from your home or office.
http://myspeed.visualware.com/index.php
Also: to understand how well (or poorly) your connection is performing for VoIP, don't run this test over WiFi, unless you want to see how poorly VoIP actually performs on WiFi vs. Ethernet. You'll see, for example, that the G.711 PCM CODEC used by GV and most other VoIP providers by default, was developed decades before WiFi, and it is quite intolerant of the drop-outs and latency introduced over WiFi.
A MOS lower than 4.0 is an indication that you will have audible problems with VoIP calling.
BigJim_McD:
Quote from: SteveInWA on January 08, 2015, 05:32:51 pm
Note that 8x8 is using Visualware's testing system. I suggest going directly to Visualware's website to run the test, which will allow you to select different endpoints around the country (or world, for that matter), to run a variety of tests. This will give you a more balanced view of performance from your home or office.
http://myspeed.visualware.com/index.php
SteveInWA, Thanks for pointing out that 8x8 is using Visualware's testing system, I'll add Visualware to my list of speed test sites.
SteveInWA:
And, speaking of speed test sites, note that, for the purposes of troubleshooting VoIP issues, this is the only valid and meaningful test site. The typical speed test sites (like Ookla) are only useful for non-VoIP use, as they don't take into consideration the full impact of jitter, latency and dropouts that are more important to high-quality VoIP, than raw speed or ping time.
The Visualware test uses its Java client to simulate and monitor an actual VoIP "call" on your PC, connecting to an endpoint of your choosing.
BB88:
I am having this problem too. I tried connecting the OBi200 directly to the cable modem (to isolate problem with the router), but the broken voice is still there. I have the problem on both the Freephoneline.ca line and the GV line. The **9 222 222 2222 echo test does NOT have the problem.
My result from the visualware test:
VoIP test statistics
--------------------
Jitter: you --> server: 20.7 ms
Jitter: server --> you: 6.0 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.0 %
Packet discards: 4.2 %
Packets out of order: 0.0 %
Estimated MOS score: 3.7
Is the result bad, or is there any other possible problem?
Navigation
[0] Message Index
[#] Next page
[*] Previous page