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tplink Posted:
Im trying to add
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DWSupport Posted:
After recent
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peterlee Posted:
Had a call from a
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rio
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TELLDOUG Posted:
I am looking for a
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On Oct 26, 2016 at 09:21:30

HildBeft Posted:
You can recollect
password by
connecting the
router to your pc
and open the
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On Oct 20, 2016 at 05:05:49

HildBeft Posted:
Great tips..
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On Oct 20, 2016 at 04:55:03

massrman Posted:
The devices are
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margins , please
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On Sep 30, 2016 at 00:48:03

massrman Posted:
Hi these are most
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their
configuration
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On Sep 30, 2016 at 00:37:45

Sammy00 Posted:
Has anyone setup a
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On Aug 30, 2016 at 10:38:01

James44 Posted:
Hi, I am
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Pyramid3
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PostPosted: Thu Dec 25, 2008 4:48 pm    Post subject: 2 to 3 second lag when picking up an inbound call Reply with quote Back to top

I see this happening much more than it did a few months ago but it now seems to take about 3 seconds after picking up the handset before we can hear each other. Since I get lots of junk calls, I typically hang up only to have the caller try again, which is kind of annoying. So what's up with the delay?
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VonTechMgr
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Location: NJ

PostPosted: Thu Dec 25, 2008 5:40 pm    Post subject: Reply with quote Back to top

Is the delay only at the beginning when you pick up? If so, is your Vonage device NAT'd behind another router or is your modem also a router?

The number one cause for the 2 - 3 second delay at the beginning of a call is due to RTP packets not coming through the NAT. The way this works is that until your device sends the first RTP packet to the media relay, the media relay wont send any packets to you. With some routers, even though you have sent the first packet out which should open the NAT pinhole and allow the packets from the media relay through the router to your device, it doesn't. So while the media relay is streaming RTP packets to your IP address, your router is treating these packets as DOS and until your device has sent so many packets out, it does not let them in. In some cases, it doesn't let them in therefore 1 way audio. In other cases, it takes so many packets out before it let's them in.

You might try a factory reset of your router, a firmware upgrade, DMZ, reduction of security features, or connect Vonage adapter directly to modem for testing purposes.

If you do not have a router that sits between the modem and your Vonage adapter, the issue is somewhere else and would require much troubleshooting.
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Pyramid3
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PostPosted: Thu Dec 25, 2008 8:10 pm    Post subject: Reply with quote Back to top

I already had the TA in the QoS pool for high priority. I just stuck it in the DMZ. Let's see what happens, thanks.
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VonTechMgr
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PostPosted: Thu Dec 25, 2008 8:21 pm    Post subject: Reply with quote Back to top

I am not 100% sure you fully understood what I am talking about. QOS will have nothing to do with this. QOS only prioritizes LAN traffic out to the internet. I had mentioned DOS(Denial of Service) in my previous e-mail which you may have misunderstood.

The way NAT works is you send a request from a PC behind the router to the internet. When this packet leaves the router, it is masked with the public IP. The router has a table that knows where to route the packet back one it comes back through the pinhole.

The Vonage media relay will not stream any RTP(audio) packets to your IP until it receives the first packet from you. Assuming there is no hesitation or delay from your Vonage adapter out through your modem sending these RTP packets, what could be happening is your router is restricting the packets back from the media relay thinking it is some sort of DOS attack. The router is closing the NAT pinhole for the session and after you have sent so many packets to the media relay IP, it finally opens this pinhole to let the packets in.

This is why I suggested trying the DMZ. Not sure it will do the trick. Factory resetting your router might do it if the problem only recently started to occur. Make sure that you haven't made any changes to your router or network such as firmware updates. Any such change prior to the issue starting could be a factor.

Last resort to confirm whether or not the router is causing the problem, connect the Vonage adapter directly to the modem and run some test calls.
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Pyramid3
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PostPosted: Thu Dec 25, 2008 8:40 pm    Post subject: Reply with quote Back to top

No, I understand. Factory reset is neither here nor there the router is only a few months old.
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MaxWin
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PostPosted: Thu Dec 25, 2008 11:44 pm    Post subject: Reply with quote Back to top

Are you sure the problem is a delay, or are the calls actually not connecting? I've had numerous problems with incoming calls for the past week. Tech support hasn't been able to resolve the issues.
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Pyramid3
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PostPosted: Fri Dec 26, 2008 8:26 am    Post subject: Reply with quote Back to top

No, they are connecting. I am reasonanbly sure than plunking the TA in the DMZ did alleviate the problem.
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