http://netalyzr.icsi.berkeley.edu/

When I came across this after reading about it at

https://www.grc.com/sn/sn-345.htm

I ran the test and found I had a 2.8 to 3.4 seconds uplink buffer time.

My mom and I have had intermittent problems with our voipo services since day 1, I suspect this has a lot to do with this.

I'd like to see some other results posted. My ISP, dslextreme.com, says they can't do anything about it.

My opinion is they could but don't know how to.

I ran the test from my mom's PC and got 560 msec after she left her dsl provider. I wish I had known about this delay earlier, I just dropped her voipo account because she had as many problems as I did and was also on dslextreme.

I moved her voice and internet to time warner, but after not being able to call my mom for 2 months I had to do something to correct her problems.

BTW Tim, I still get a busy signal every time I call her, I suspect you still have her number in your system so I never get passed to the PSTN, I'm guessing your post porting process misses this, something similar happened when she switched over to Voipo before AT+T ported her number.
See ticket CJF-281793 for details.