when people call me they complain of choppy voice

Posts: 5 · New Forum Member Joined: May 02, 2008 Posts: 5

I changed my speed to 30kbs on my account and that didnt help. Did a viop test and these are my results.

Media Quality MOS 1.0 / 5.0
(Best with G.711 is 4.4)

Degradation Sources
Codec 0.58 14.4%
Latency 0.83 20.7%
Packet Discards 0.54 13.5%
Packet Loss 2.05 51.3%

Codec G.711 (PCM at 64kbps,
20ms RTP payload,
80kbps IP BW)
Round-Trip
Latency 1754 ms
Packet Discards 10.1%
Packet Loss 38.1%
Loss Periods Min: 20 ms
Avg: 120 ms
Max: 620 ms
Burst Loss

Jitter Min: 0 ms
Avg: 59 ms
Max: 3649 ms

Signaling Quality Post-Dial Delay 41 ms
Call Setup Time 51 ms
Media Delay 3185 ms

Posts: 699 · Vonage Forum Evangelist Joined: Nov 05, 2005 Posts: 699

Your results for latency, packet loss and packet discards are all extremely high, thus the reason for your choppy calls...lowering your bandwidth settings will in no way correct your current issue. Suceess with VoIP is highly dependent upon the quality of your ISP connection and from the looks of your results, your connection is not good at all.

Are you using a cable connection or dsl connection and are there any routers involved? You may want to first look at your modem...if it's bad, simply replacing the modem could correct your problem. If it's not the modem, your internet service provider is at fault and they would have to correct the issue. Either way, I would consult with your isp and let them know of the latency, packet loss and packet discards you are currently experiencing.

Posts: 4482 · Vonage Forum **MVM** Joined: Aug 30, 2005 Posts: 4482

Agreed. Also, you haven't posted details of your network setup. As Darrell indicated, the problem could be in your modem. An easy way to look at the modem is to start by plugging the computer directly into the modem and repeating the test. If the test comes out good, then you've narrowed the problem down to your network setup. If it's still bad, then it's your modem or the service itself.

Posts: 5 · New Forum Member Joined: May 02, 2008 Posts: 5

Darrell_G wrote:

Your results for latency, packet loss and packet discards are all extremely high, thus the reason for your choppy calls...lowering your bandwidth settings will in no way correct your current issue. Suceess with VoIP is highly dependent upon the quality of your ISP connection and from the looks of your results, your connection is not good at all.

Are you using a cable connection or dsl connection and are there any routers involved? You may want to first look at your modem...if it's bad, simply replacing the modem could correct your problem. If it's not the modem, your internet service provider is at fault and they would have to correct the issue. Either way, I would consult with your isp and let them know of the latency, packet loss and packet discards you are currently experiencing.

I am using a cable connection. Out of Cable modem, to my Vonage router, and out of the vonage router on port 1 to a linksys WRT300N Wire-less router plugged into the WAN connection.

Ip on the vonage router is 192.168.15.1 and setup for DHCP and ip on the linksys is 192.168.1.1 and also is setup for DHCP for my network workstations that are plugged directly into ports on the back. I reset all my equiptment once and the problem went away for about 5 hrs and then came back. I removed my vonage router from the network and retested and all of the latency and packet loss problems went away. I also noticed when I plugged my vonage router back in, that when I would get a call, I would get disconnected from my wireless router, while I was using the laptop.

Posts: 5 · New Forum Member Joined: May 02, 2008 Posts: 5

Steve48 wrote:

Agreed. Also, you haven't posted details of your network setup. As Darrell indicated, the problem could be in your modem. An easy way to look at the modem is to start by plugging the computer directly into the modem and repeating the test. If the test comes out good, then you've narrowed the problem down to your network setup. If it's still bad, then it's your modem or the service itself.

Reset again all my equiptement and then ran the speed test.
Here are my results. This too will change with time.

Speed test statistics
---------------------
Download speed: 6934448 bps
Upload speed: 490984 bps
Quality of service: 91 %
Download test type: socket
Upload test type: socket
Maximum download pause: 32 ms
Average download pause: 4 ms
Minimum round trip time to server: 56 ms
Average round trip time to server: 275 ms

VoIP test statistics
--------------------
Jitter: you --> server: 0.4 ms
Jitter: server --> you: 0.2 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.0 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Number of supported VoIP lines: 8
Estimated MOS score: 4.2

Posts: 4482 · Vonage Forum **MVM** Joined: Aug 30, 2005 Posts: 4482

I'm concerned about the loss of internet when you receive a call. Are you using a 2.4 GHz cordless phone? They will interfere with wireless routers, and that could be the cause of all your problems.

If that's not it, the next step is to run the VoIP test with the modem and Vonage unit in the mix, but the Linksys left out.

Posts: 5 · New Forum Member Joined: May 02, 2008 Posts: 5

Steve48 wrote:

I'm concerned about the loss of internet when you receive a call. Are you using a 2.4 GHz cordless phone? They will interfere with wireless routers, and that could be the cause of all your problems.

If that's not it, the next step is to run the VoIP test with the modem and Vonage unit in the mix, but the Linksys left out.

Yea I am using 2.4 GHz phones. I can see that causing me to loose connection with my laptop. But I am really tring to resolve this issue with the phone quality getting choppy after a couple of days after I have reset all my network equiptment. Is it a problem that DHCP is setup on both my linksys and vonage routers at the same time? Could this be also a problem?

Posts: 699 · Vonage Forum Evangelist Joined: Nov 05, 2005 Posts: 699

There is no need to have DHCP enabled on both routers. If your linksys router is your primary router, disable DHCP on the Vonage router.

Posts: 2 · New Forum Member Joined: Sep 27, 2005 Posts: 2

What device are you using and what happens when you run the test with no vonage device?