Ping response of my ATA-186

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I have experienced very choppy calls with my Vonage service. I believe it is my broadband provider, my router, or my ATA-186. The Vonage speed test comes back very high (over 1200 kpbs down and 600 kpbs up) and I regurarly get 4mb up/down from DSLREPORTS, so bandwidth shoudln't be an issue. I currenlty have my ATA at a friends house with a different broadband provider and router to see if they experience the same issues.

I did notice that when I ping my ATA-186 from another local device, the response time is always in the 65ms range. I took the ATA to a friends house and experienced the same type of response there. Other pings at my house were as follows.
- From 100mb Linux system to 10mb XP system, 0.5 ms
- From 100mb Linux system 11mb wireless laptop, 4.11ms
- From 100mb Linux to ATA, 65ms
- From 10mb XP to ATA, 62ms

Can someome please ping their ATA from another device on their local LAN and let me know what kind of response time you get? I find it hard to believe that 65ms is to be expected, when I can ping out to yahoo.com in like 20ms.

Thanks....

Posts: 3 · Posted: Wed Mar 12, 2003 12:12 pm Post subject:

Antipas,

Thanks for the reply. So you have ATA on the outside of your home firewall/router? Was this for added performance?

Anyone else able to ping their ATA from a computer on their local network and let me know what the response time is?

Thanks,
Gary

Posts: 44 · Posted: Wed Mar 12, 2003 3:51 pm Post subject:

Hi Gary
I've noticed the same as you - I think its just how the router is as far as ping times go.
Below are pings to my ATA (local network - 2 switches away)...

archimedes# ping -c 10 xx.6.196.1x6
PING 81.6.196.156 (xx.6.196.156): 56 data bytes
64 bytes from xx.6.196.1x6: icmp_seq=0 ttl=250 time=64.755 ms
64 bytes from xx.6.196.1x6: icmp_seq=1 ttl=250 time=69.542 ms
64 bytes from xx.6.196.1x6: icmp_seq=2 ttl=250 time=60.055 ms
64 bytes from xx.6.196.1x6: icmp_seq=3 ttl=250 time=60.533 ms
64 bytes from xx.6.196.1x6: icmp_seq=4 ttl=250 time=61.133 ms
64 bytes from xx.6.196.1x6: icmp_seq=5 ttl=250 time=61.780 ms
64 bytes from xx.6.196.1x6: icmp_seq=6 ttl=250 time=62.376 ms
64 bytes from xx.6.196.1x6: icmp_seq=7 ttl=250 time=62.795 ms
64 bytes from xx.6.196.1x6: icmp_seq=8 ttl=250 time=63.420 ms
64 bytes from xx.6.196.1x6: icmp_seq=9 ttl=250 time=63.913 ms

--- xx.6.196.1x6 ping statistics ---
10 packets transmitted, 10 packets received, 0% packet loss
round-trip min/avg/max/stddev = 60.055/63.030/69.542/2.589 ms
archimedes#

Yes I have my ATA with a public DSL IP.
I dont have any problems with call quality - and I'm in the UK.
Paste a traceroute here to sip.vonage.net ( 12.144.47.38 ) and lets see if its a problem upstream for you...

Posts: 3 · Posted: Sun Mar 16, 2003 8:57 pm Post subject:

Thanks for the replies. I upgraded my broadband router from a DLink DI-713P to a LinkSys WRT54G and Vonage call quality has improved. Gues it proves that the router you are using can make a difference.

I still have ping times of like 65ms the ATA, but looks like that is normal from the responses I received.

Thanks...

Posts: 44 · Posted: Mon Mar 17, 2003 4:57 pm Post subject:

Gary
Glad to see things are working out for you.
The ping replies from the ATA are strange - I cant figure out why.
It works so thats all I'm worried about.

Posts: 2 · Posted: Sun Mar 23, 2003 6:11 pm Post subject: Same problem..

I am running a Netgear wireless router (MR814) with the ATA plugged into the router and the router plugged into the Motorola SB4200 cablemodem. My callers complain of choppyness in my voice or missed words much like a cellphone. How do I test the internal speed of my system to see if there is a problem on my end or maybe the ATA etc.. Does anyone run a wireless router if in the event this is the problem and if so which one is working for you? Tnx Richy

Posts: 44 · Posted: Mon Mar 24, 2003 2:22 am Post subject:

Hi
Sorry to hear that you're having problems.
One of the first things I would ask is what is the rated speed of your cable modem when you use the speed test facility on the Vonage web site itself?
Also - do you have anything else going on when you are making calls? It would be interesting to see if you get the same results with just the Vonage plugged in, and not the computer.

Posts: 27 · Posted: Wed Mar 26, 2003 5:35 pm Post subject:

Bandwidth is only one of the components that is important to a good voice call. You also have to consider the latency -- and the latency needs to be somewhat consistent.

A good test for latency is the pathping command (win2k or winxp). Try "pathping x" where x= your border router IP address. Chances are your internal network is fine. It'd be interesting to see a pathping sip.vonage.net, too, though I'm not sure how much value that would provide.