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Vonage Vonage tech support is only good for instructing customers how to plug in cables
Vonage tech support is only good for instructing customers how to plug in cables between devices. They do not understand the Vonage network or how the service really works. So this type of information taken from them is completely useless. RTP streams between your location and the Vonage media relays. By setting your RTP ports higher on your device, it does not make any difference to a protocol aware application that manipulates packets types based upon priority.
It also has no affect on the port being used at the media relay. Additionally the agents do not take into consideration the NAT factor. Let's say they set your ports to 15050 - 15150 from 10050 - 10150. If you have a Vonage device behind a router, the router may NAT/ PAT the port to something completely different. While the stream between the Vonage device and your router may be 15050, the source port of the RTP leaving your modem could be 42000 or any random port.
If this issue is truly being caused by the Network Management system Comcast is running, there are no settings that Vonage can change on your device or their network. An IP packet is just that. If Comcast looks at the packet and prioritizes it, your going to have issues. Again you state Vonage says there are no known issues with Comcast.
Your speaking to people who answer the phones. They do not know or understand what is going on. This is how it is in any company. The people who answer the phones have no knowledge of what happens behind the scenes. They are just there so callers have a human being to speak to and they collect data from the customer. They are not really the ones actually fix things. The people you spoke to are most likely not even in the US. And it is known within Vonage at the higher levels that there is a possible issue with Comcast but there is nothing anyone can do about it.
And yes, tech agents would like to help, they cannot with these types of issues. So they think they are helping by making random changes to your device. This is known as the "Urban Legends" within a call center. One person makes a random change that they believe is the "Fix All" and it gets passed around. Next thing you know, low level techs are making random changes to customers devices that actually cause more harm then good in the long run. That's why Vonage Engineers have to continuously make changes to lock down more and more device settings the phone techs have access to in order to keep them for making things worse.
The answer is no and this is exactly what I am referring to in the previous paragraph. Do you want your phone Volume to be too loud or too soft either heard by you or the party your speaking to? Probably not but that is what the Rx and Tx settings control. It can adjust the analog and digital side of the device to increase or decrease the Volume in or out. This has no effect of the flow of RTP packets to or from your device. As for the packet length, this is how much audio is sent per packet. The default is 20 milliseconds worth of voice per packet. By increasing the packet size to 30 milliseconds, you will lose more audio if you drop a few packets. If you decrease this to 10 milliseconds, you will lose less audio during brief packet loss but it slightly increases your overall bandwidth usage. It also means that you have to be able to send and receive more of these packets to make a complete word so if you have packet loss, your going to end up with hearing bits and pieces of words. And again, this wont help much if your packets are being manipulated by Comcast.
Hope this clears up a few things.
Read The Full Thread: Fix : Vonage on Comcast - audio break up issues/problem
• cross posted from ZDNET that is wrote:
http://talkback.zdnet.com/5206-10537-0.html?forumID=1&th
• The only problem with that is that the properties the technical support agent
• we'll see if this fixes the problem. it is intermittant.
they implied that the
VonTechMgr posted "Vonage tech support is only good for instructing customers how to plug in cables" on 03/25/2009 |
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