Only 3.2 on testyourvoip, but 3539 kbps dl and 334 kbps ul

Posts: 2

1. Your location
Bellevue, WA

2. Your ISP name and type (cable, DSL, wireless etc)
Comcast, cable modem

3. Upload and download speeds
Your download speed : 3539 kbps or 442.4 KB/sec.
Your upload speed : 334 kbps or 41.8 KB/sec.

4. Modem make and model
Motorola Surfboard SB5100
Linksys BEFSR41 wired router

5. Type of Vonage adapter used ie RT31P2 or PAP2
VTech IP8100-2

6. Setup of Network ie Modem---->Vonage Adapter-->PC
Cable modem -> Router -> PC in Lan 3, Vonage Adapter in Lan 4

7. Issue you are experiencing ie dropped calls, choppy audio etc
Audio is choppy. No dropped calls, but audio will drop out for a second plus and I kept thinking (and asking the other party) did the line drop? I can hear the choppiness on both sides--when receiving calls at home, and when calling home from work.

With the Vonage Adapter in Lan 3 and the PC in Lan 4 of the router, I was getting a 2.8 and 3.0

After swapping 'em around I'm getting between 3.2 and 3.4

8. DETAILED results from http://www.testyourvoip.com with a test call to Boston.

MOS Analysis From You TO Boston

Media Quality MOS 3.2 / 5.0
(Best with G.711 is 4.4)

Degradation Sources
Codec 0.58 32.3%
Latency 0.00 0.0%
Packet Discards 1.20 67.7%
Packet Loss 0.00 0.0%

Codec G.711 (PCM at 64kbps,
20ms RTP payload,
80kbps IP BW)
Round-Trip
Latency 166 ms
Packet Discards 4.0%
Packet Loss 0.0%
Loss Periods Min: 20 ms
Avg: 20 ms
Max: 60 ms
Random Loss

Jitter Min: 0 ms
Avg: 4 ms
Max: 59 ms

Signaling Quality Post-Dial Delay 110 ms
Call Setup Time 140 ms
Media Delay 350 ms

MOS Analysis FROM Boston To You

Media Quality MOS 4.2 / 5.0
(Best with G.711 is 4.4)

Degradation Sources
Codec 0.57 76.7%
Latency 0.00 0.0%
Packet Discards 0.17 23.3%
Packet Loss 0.00 0.0%

Codec G.711 (PCM at 64kbps,
20ms RTP payload,
80kbps IP BW)
Round-Trip
Latency 166 ms
Packet Discards 0.7%
Packet Loss 0.0%
Loss Periods Min: 20 ms
Avg: 20 ms
Max: 40 ms
Random Loss

Jitter Min: 0 ms
Avg: 1 ms
Max: 31 ms

Signaling Quality Post-Pickup Delay 216 ms
Call Setup Time 216 ms
Media Delay 251 ms

Posts: 605 · Posted: Fri Jan 13, 2006 7:38 am Post subject:

I dont think that MOS crap has much to do with Voip calls. I only get 3.4 usually and I get crystal clear calls with no chop. Have you tried connecting the phone adapter directly to the cablemodem to determine if maybe it is a problem with your router settings?

Posts: 4777 · Vonage Forum **MVM** Joined: Aug 30, 2005 Posts: 4777

Kengrubb,

Kevin has given you good troubleshooting advice. Meanwhile, I'd add that you have high dropped packets, and the setup you've got pretty much eliminates the Vonage adapter as the source. If the situation doesn't improve when you do the test suggested by Kevin, try plugging your computer directly into the cable modem and re-running the Voip test. If you still have high packet loss, it's time for a call to your ISP.