Poor voice quality (worked for 9 months without a glitch)

Posts: 69 · Full Forum Member Joined: Jan 10, 2005 Posts: 69

From last 2 days my call quality is pathetic. I couldn't make calls, calls got dropped and in few instances 5-10 seconds blank gap during the calls.

BTW, it worked fine for 6 months without a glitch.

I rebooted the modem/adapter more than 10 times, but same quality. It's happens intermittently. I can't predict exactly when it happens. The phone light lits, but I can't make the call.

Where should I start? Do I have to contact Vonage or my cable modem provider? BTW I am using Lite version of High speed connection but never ran across this problem.

I ran VOIP test. Here are the results.

Any pointers?

Vonage VoIP Analysis
Given your current Internet speeds, we estimate that your Internet connection can support a maximum of 1 simultaneous high quality Vonage® VoIP connections.

My Results

Download 395,176 bps
Upload 76,928 bps
QOS 98%
RTT 42 ms
MaxPause 63 ms

Posts: 282 · Posted: Sun Oct 02, 2005 2:07 pm Post subject:

With your upload speed of 77Kbps, you would probably have problems if you are using the 90Kbps "bandwidth saver" setting. This is located in your Vonage.com account page under features. Try using the the 30Kbps or 50Kbs bandwidth saver and see if that helps.

Do you know if your upload speed has changed (downward) recently?
77Kbps sounds pretty low, but I don't know what the baseline is for your Lite connection - I thought those were generally more like 256K-384K down and 128K up. If it is lower than it used to be, that would account for the sudden change in VoIP service quality, and would indicate an issue with either the ISP or your router.

Posts: 69 · Full Forum Member Joined: Jan 10, 2005 Posts: 69

I didn't any settings. I checked the bandwidth saver setting. It's at 50 kbps.

I did one more reboot then results are different.

My Results
Download 389,816 bps
Upload 176,416 bps
QOS 96%
RTT 49 ms
MaxPause 328 ms

Firmware Version: 1.28.00
Voice Version: 2.0.13(LIVd)

I use my configuation as explained here http://www.vonage.com/help_knowledgeBase_article.php?article=61

Posts: 605 · Posted: Sun Oct 02, 2005 3:15 pm Post subject:

Latest Firmware for the RT31P2 is 1.30.01 BTW. Maybe they need to push a new firmware to you.

Posts: 2 · New Forum Member Joined: Oct 04, 2005 Posts: 2

sbmlat wrote:

From last 2 days my call quality is pathetic. I couldn't make calls, calls got dropped and in few instances 5-10 seconds blank gap during the calls.

BTW, it worked fine for 6 months without a glitch.

I rebooted the modem/adapter more than 10 times, but same quality. It's happens intermittently. I can't predict exactly when it happens. The phone light lits, but I can't make the call.

Where should I start? Do I have to contact Vonage or my cable modem provider? BTW I am using Lite version of High speed connection but never ran across this problem.

I ran VOIP test. Here are the results.

Any pointers?

Vonage VoIP Analysis
Given your current Internet speeds, we estimate that your Internet connection can support a maximum of 1 simultaneous high quality Vonage® VoIP connections.

My Results

Download 395,176 bps
Upload 76,928 bps
QOS 98%
RTT 42 ms
MaxPause 63 ms

I'm experiencing the same thing. Everything worked great...then all of a sudden after 6 months of great service, I started getting the symptoms that you mentioned...i.e., very bad voice to the point where I can't hear the other person or the person on the other end can't hear me. The voice goes in and out. Its terrible. My VOIP is essentially useless when this happens. Its seems to be happening more often now.

I called tech support at Vonage and it appears that I have high latency on the line. It takes too long for data packets to go from my house, to my ISP, then to Vonage, and as a result, data packets are lost. A ticket was opened...I don't know what will come of it. I have a 6meg down and 800kps Up internet connection. Bandwidth is NOT an issue even though the tech tried to convince me that my issues were bandwidth related. It was only after a little deeper digging that he noticed the high latency on the line. BTW, I download and upload at incredible rates...its only Vonage that is causing me headaches.

I'm still try to see of there is something that I can do on my end to resolve this. Maybe someone can give me some ideas.

Posts: 30 · Vonage Forum Junior Joined: Sep 02, 2005 Posts: 30

If there is ingress (packet losst) then this is an issue that I think you need to take up with your isp...Event though your bandwidth is fine, the packet loss is something the isp has to address. Someties changing the rwin settings in windows can help...You would need to get an application that does this. I use an app from broadband.com for changing the rwin setting. I had to buy points there to use the applets,,, Just a thought for u.

Howie

Posts: 2 · New Forum Member Joined: Oct 04, 2005 Posts: 2

hwaters wrote:

If there is ingress (packet losst) then this is an issue that I think you need to take up with your isp...Event though your bandwidth is fine, the packet loss is something the isp has to address. Someties changing the rwin settings in windows can help...You would need to get an application that does this. I use an app from broadband.com for changing the rwin setting. I had to buy points there to use the applets,,, Just a thought for u.

Howie

Hey Howie, Changing the Rwin is only going to effect the download and upload speeds on my computer, but I don't think that it would have any effect on my VOIP??

Posts: 30 · Vonage Forum Junior Joined: Sep 02, 2005 Posts: 30

yes, I might be completly wrong on this, but my thought was that if the packets are too large, than too many of them might be dropped because both remote and local server cannot handle it well... I am not an expert nor am I sure about what I am saying.. just a thought... sorry if I am really off on this one.

Howie