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Sammy00 Posted:
Has anyone setup a
W52p phone for
vonage? I have
a W52p with two
wireless handsets,
...

In The Forum:
Hard Wiring - Installation
Topic:
W52p Setup
On Aug 30, 2016 at 10:38:01

James44 Posted:
Hi, I am
looking for a good
Sip Trunking
provider in
Canada. they
should offer
...

In The Forum:
Vonage
Topic:
A good sip trunking provider
On Jul 17, 2016 at 23:42:46

James44 Posted:
Which network
connection do you
use?
...

In The Forum:
Vonage
Topic:
Wireless Access Point plugged into switch
On Jul 13, 2016 at 22:55:00

jjatsk Posted:
We are renting a
few offices right
next door to our
main building. I
have a wireless
...

In The Forum:
Vonage
Topic:
Wireless Access Point plugged into switch
On Jul 09, 2016 at 12:00:54

Pman Posted:
Hello, While
Vonage has been a
great service over
the years, it is
time to part
...

In The Forum:
LNP – Local Number Portability
Topic:
Cannot port phone number to new carrier - repeated failures
On Jul 05, 2016 at 09:12:07

jbugz67 Posted:
We recently
purchased 5
Polycom VVX 300
phones from
Vonage, and have
regretted
...

In The Forum:
Vonage
Topic:
Nothing but problems with VVX300
On Apr 15, 2016 at 14:58:07

RichardPi Posted:
Hello, does
anybody recollect
how to get into
wifi password from
diggings router?
...

In The Forum:
Hard Wiring - Installation
Topic:
How to arrive at wifi password?
On Mar 31, 2016 at 02:39:07

RichardPi Posted:
Hello, does
anybody know how
to get into wifi
watchword from
home router?
...

In The Forum:
Hard Wiring - Installation
Topic:
How to be noised abroad wifi password?
On Mar 30, 2016 at 18:48:05

achow26 Posted:
BrettaMan, I am
having the same
problem. I do not
have the loopback
plug. I tried
...

In The Forum:
Hard Wiring - Installation
Topic:
Vonage issue with USTec UX-226
On Feb 16, 2016 at 14:13:37

alicesmith Posted:
I have used the
PBX phone system
in my new office.
I was very
confused about
phone
...

In The Forum:
Vonage
Topic:
IP PBX for small business
On Jan 29, 2016 at 01:49:14


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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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Joined: Jan 02, 2008
Posts: 656
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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Vonage Forum Evangelist


Joined: Jan 02, 2008
Posts: 656
Location: NJ

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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Joined: Dec 26, 2008
Posts: 2

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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Posts: 51

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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