BobY777
01-31-2006, 06:17 PM
I'm trying to figure out the number of concurrent VoIP users that I might be able to use on my WISP system. After that I wanted to see if QoS will allow computer users on my system, along with the VoIP users...
If I may, let me take an extreme view of this situation.
Sometimes extreme views are good, in an effort to "home in" on typical situations.
Lets say I only have VoIP users on my WISP system. Lets say I have good ping times. I tested my Speak Easy ISP line earlier and have average ping times of around 38 mS and no packet losses. I plan on only installing WISP customers where I can get real good signal levels. So...
I figure the most concurrent VoIP users I can get on my WISP system will be (assuming 1.5 Mb symmetrical):
1.5 Mb / 64 kb = 23 concurrent VoIP users.
I realize that some people say that VoIP users say to have 90 Kb for each user. But I guess 64 Kb should be good too for good audio.
So thats 23 concurrent VoIP users for good VoIP quality. But most ISPs use oversubscription. That is we assume all the 23 VoIP subscribers won't be using their VoIP all at the same time. So I might be able to have 23 more VoIP subscribers for a total of 46 VoIP customers. Maybe more.
Lets assume I have 23 concurrent users...
Now, what if I also let computer users use my WISP system at the same time that 23 concurrent VoIP users are using the system? In an effort to have good VoIP quality, lets assume I have QoS enabled on my equipment. And QoS is also enabled from the ISP that I get my broadband from...thats Speak Easy.
As I add more computer users to the 23 concurrent VoIP users, if I have QoS from Speak Easy and I also have QoS turned on, on my equipment, do you think my VoIP customers will have qualtiy issues, at the same time my computer users are on? Maybe not.
Maybe QoS will take care of things for my VoIP users ?
I thank you all for your comments, in getting me to think right about this VoIP stuff.
If I may, let me take an extreme view of this situation.
Sometimes extreme views are good, in an effort to "home in" on typical situations.
Lets say I only have VoIP users on my WISP system. Lets say I have good ping times. I tested my Speak Easy ISP line earlier and have average ping times of around 38 mS and no packet losses. I plan on only installing WISP customers where I can get real good signal levels. So...
I figure the most concurrent VoIP users I can get on my WISP system will be (assuming 1.5 Mb symmetrical):
1.5 Mb / 64 kb = 23 concurrent VoIP users.
I realize that some people say that VoIP users say to have 90 Kb for each user. But I guess 64 Kb should be good too for good audio.
So thats 23 concurrent VoIP users for good VoIP quality. But most ISPs use oversubscription. That is we assume all the 23 VoIP subscribers won't be using their VoIP all at the same time. So I might be able to have 23 more VoIP subscribers for a total of 46 VoIP customers. Maybe more.
Lets assume I have 23 concurrent users...
Now, what if I also let computer users use my WISP system at the same time that 23 concurrent VoIP users are using the system? In an effort to have good VoIP quality, lets assume I have QoS enabled on my equipment. And QoS is also enabled from the ISP that I get my broadband from...thats Speak Easy.
As I add more computer users to the 23 concurrent VoIP users, if I have QoS from Speak Easy and I also have QoS turned on, on my equipment, do you think my VoIP customers will have qualtiy issues, at the same time my computer users are on? Maybe not.
Maybe QoS will take care of things for my VoIP users ?
I thank you all for your comments, in getting me to think right about this VoIP stuff.