hey guys,
im new to this forum and happy to join such an interesting and hopefully a useful one

I'm working on a Voice chat application in c# as a part of my graduation project and i have a couple of questions

1-which is better, to implement it using client-server or is it better with p2p??

2-If it is better using P2P ..im facing a big problem with that as i want to implement it using hybrid P2P (i.e Agent ,Hub) in order to get the ip addresses of the available peers..and i simply cant find any source to explain to me how to implement it, especially the Hub part..so if anyone would help me with those issues i would be very thankful



Noha Salah

Certainly from a performance standpoint, going p2p would be beneficial. With the amount of data you would need to pump through for voice, eliminating as many bottlenecks would be key. If everything goes through a single point like a server, then it will have to be one heck of a server with a big network pipe. Of course, doing it p2p has it's own challenges, as you have pointed out, determining IPs so you can establish direct connections being a pretty formidable one.

-Peter
peterlanoie.blog

There are now the System.Net.PeerToPeer and System.Net.PeerToPeer.Collaboration namespaces - don't know what they do but it might be useful to look into them.

Also, I suspect have a server which co-ordinates the users of the voice system, while having the direct voice to voice going from peer to peer would be the simplest implementation.

/- Sam Judson : Wrox Technical Editor -/

P2P certainly is the way to go, what you are stuck at is the 'Discovery' bit of the process. I had co-authored a book, just on the subject when P2P as notion was pretty much still in its infancy. I tried re-creating Nabster, minus the lapses that ran it into litigation problems, and gave away the source code free with the book. The book is still hanging on by its fingernails, has survived heavy pounding from critics, and has already been published in few other languages. Can be found here, http://www.amazon.com/gp/product/076...pr_product_top
Obviously, I love this book ;)

Regards
Ankur

hi
im also working on something similar to for graduation project!!!!
i am trying to create a free calling system using mobile phones across a WiFi network. i am trying to implement the system using a hybrid p2p network using c# in .NET framework in visual studio.
I was wondering if this is possible to implement?
If so, is there any other way to implement p2p connections between two mobile phone without using sockets?