Calls being cut off

Posts: 17 · Vonage Forum Associate Joined: Jan 21, 2006 Posts: 17

I searched throughout this board and did not find any possible solutions for this topic, so I am opening it up for discussion. Since I have had Vonage for about 2 weeks, there have been occasions where my calls were cut off in the middle of conversation. There have been absolutely no issues with one-way conversations, nor garbled speech. I suspect the problem lies between Vonage's gateway or meet-me point with the existing LEC in my area. I need to hear from those who found solutions for this problem.

As this forum requires, here is the following data:

1. Your location: Vancouver, WA
2. Your ISP name and type (cable, DSL, wireless etc): Comcast
3. Upload and download speeds: 384k/6800k
4. Modem make and model: Motorola SB5101
5. Type of Vonage adapter used i.e. RT31P2 or PAP2: Linksys WRTP54G
6. Setup of Network i.e. Modem----Vonage Adapter--PC: ISP>>>Modem>>>Router>>>PC
7. Issue you are experiencing i.e. dropped calls, choppy audio etc: Dropped calls
8. DETAILED results from www.testyourvoip.com with a test call to Boston. (see below)

MOS Analysis FROM You to Boston

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

Degradation Sources
Codec 0.5768.1%
Latency 0.056.3%
Packet Discards 0.1416.9%
Packet Loss 0.078.4%

CodecG.711 (PCM at 64kbps, 20ms RTP payload, 80kbps IP BW)
Round-Trip Latency 202 ms
Packet Discards 0.5%
Packet Loss 0.3%
Loss Periods Min:20 ms
Avg: 20 ms
Max: 20 ms
Random Loss
JitterMin: 0 ms
Avg: 7 ms
Max: 27 ms

Signaling Quality Post-Dial Delay 156 ms
Call Setup Time 156 ms
Media Delay 359 ms

MOS Analysis FROM Boston To You

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

Degradation Sources
Codec 0.5770.7%
Latency 0.056.4%
Packet Discards 0.000.0%
Packet Loss 0.1822.8%

CodecG.711 (PCM at 64kbps, 20ms RTP payload, 80kbps IP BW)
Round-Trip Latency 202 ms
Packet Discards 0.0%
Packet Loss 0.8%
Loss PeriodsMin: 20 ms
Avg: 20 ms
Max: 20 ms
Random Loss
JitterMin: 4 ms
Avg: 6 ms
Max: 27 ms

Signaling Quality Post-Pickup Delay 174 ms
Call Setup Time 180 ms
Media Delay 205 ms

Posts: 122 · Posted: Fri Feb 10, 2006 11:48 am Post subject:

We had a similar problem ourselves just this past week. We were talking on the phone and for no reason, it just cut off. And no, it wasn't past the 4-hour limit either.

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

Wb7shc,

I see that you're using a wireless router/adapter. What kind of phone are you using? If it's a 2.4 GHz cordless, that could explain the problem you're having.

Posts: 17 · Vonage Forum Associate Joined: Jan 21, 2006 Posts: 17

I have a 2.4GHz cordless set, but rarely use it. The cutoffs occurred strictly on the wired (and sometimes weird) side of things.

As stated before, one-way speech or degradation did not occur in any of the instances of dropped calls. In all cases, the calls were in my town. My telecom background of 30 years leans me more toward the switched side of the network...the trunking between the LEC's and Vonage's nearest point of presence in my region. Networks, unfortunately, have become so ambiguous that locations are meaningless. Call traces are a bit of a challenge, compared to the old days.

Since I am relatively new to the Voip game (but not new to IP), I want to make sure to glean from others' experiences and solutions, before I start shooting off to Vonage. My multi-lingual skills are rather shallow. Wink