Choppy Calls: Ann Arbor, MI

Posts: 34 · Posted: Sun Jul 31, 2005 1:33 pm Post subject: Choppy Calls: Ann Arbor, MI

Hey all, long time no post. That's cuz for a long time everything has been aces with Vonage and my ISP and my call quality. HAve had no issues for about 8 months, then in the last week all of a sudden I'm getting choppy and garbled audio when I place calls.

Anyone else in A2 area with comcast having similar issues?

The thing that irks me is that nothing changed in my setup that has been fine for months -- here's the details.

1. Location: Ann Arbor, MI
2. Comcast Cable
3. Upload and download speeds
Upload:353 kbps
Download: 3377 kbps
(from dslreports.com/speedtest)
4. Modem make and model
SB5100
5. Type of Vonage adapter used ie RT31P2 or PAP2
Motorola VT1000
6. Setup of Network ie Modem---->Vonage Adapter-->PC
Cable -> Linksys WRTG54S -> Wireless and ATA
7. Issue you are experiencing ie dropped calls, choppy audio etc
Choppy Audio
8. DETAILED results from www.testyourvoip.com with a test call to Boston.

To Boston:
MOS 4.0/5.0
Degradation Sources:
Codec: 0.57 60.3%
Latency: 0.06 6.1%
Packet Discards: 0.32 33.5%
Packet Loss: 0.00 0.0%

Round-Trip Latency 201ms
Packet Discards 1.5%
Packet Loss 0.0%
Loss Periods
Min: 20 ms
Avg: 20 ms
Max: 60 ms
Random Loss
Jitter
Min: 0 ms
Avg: 7 ms
Max: 124 ms

Signaling Quality
Post Dial Delay 126 ms
Call Setup Time 132 ms
Media Delay 263 ms

From Boston:
MOS 4.1/5.0
Degradation Sources:
Codec: 0.58 65.4%
Latency: 0.06 6.3%
Packet Discards: 0.25 28.2%
Packet Loss: 0.00 0.0%

Round-Trip Latency 201ms
Packet Discards 1.3%
Packet Loss 0.0%
Loss Periods
Min: 20 ms
Avg: 20 ms
Max: 60 ms
Random Loss
Jitter
Min: 0 ms
Avg: 7 ms
Max: 116 ms

Signaling Quality
Post Dial Delay 147 ms
Call Setup Time 146 ms
Media Delay 178 ms

Posts: 164 · Posted: Sun Jul 31, 2005 2:23 pm Post subject: Re: Choppy Calls: Ann Arbor, MI

chrisp wrote:

Hey all, long time no post. That's cuz for a long time everything has been aces with Vonage and my ISP and my call quality. HAve had no issues for about 8 months, then in the last week all of a sudden I'm getting choppy and garbled audio when I place calls.

Anyone else in A2 area with comcast having similar issues?

The thing that irks me is that nothing changed in my setup that has been fine for months -- here's the details.

1. Location: Ann Arbor, MI
2. Comcast Cable

Yes. same location, same carrier, same problem.

It is an inconsistent problem; it varies by call. My theory is packet-handling issues with CC. I don't think it is a Vonage problem.

I also don't think there is a Vonage solution. I would not change settings or configuration looking for a fix.

Pepperoni

Posts: 1715 · Posted: Sun Jul 31, 2005 11:37 pm Post subject:

Just curious, what happens if you use the bandwidth saver & drop the call quality down to 30kbps?

Posts: 34 · Posted: Mon Aug 01, 2005 5:13 pm Post subject:

VonageTPA wrote:

Just curious, what happens if you use the bandwidth saver & drop the call quality down to 30kbps?

Tried that too, and made no differences in call quality... Strange part is the garble is only on my end of the conversation: the other party hears me just fine.

Anyways, mucked around with this for a few hours yesterday (placed the Motorola device outside my router (i.e. cable, motorola, then router, then pc) with no changes, and restored original config (cable -> router (w/qos by motorola MAC address) -> PCs and Motorola... no changes... Power cycled everything in the house.... no changes...

THEN... after giving up the phone rang later sunday night and bam.. clear as a bell...

Crossing my fingers that the gremlins stay away from my line...

chrisp