Live Chat Similar to Alibaba seller/ buyer chat

Project Description:

I want someone to design and implement for us a live chat program that will be used on our ecommerce website. This chat program can allow shoppers and sellers have live chat like in Alibaba . The live chat program should function exactly like that of Alibaba. It should be able to

a) Detects when either the seller of an item is login and shows their status below the item being sold as Seller is Online - Chat Now and if not login, this shows below the item being sold and being view should be Seller offline.

b) Enable shoppers to leave a message to sellers who are offline at the moment and notify seller by email that someone has left them a message with a question about item  xyz they are selling on 360kmall . Enable sellers to see details on the message when they login to the program and not on the email. They will view and response to their messages from their control panel once login

c) Enable shoppers to Request a Phone call from the item seller who is either online or not. This function will pull requestor phone number from a database and send it to the seller using email notification. This function request should

i) Send out an email to identified seller of an item that a shopper is requesting a phone call from them providing them with a number to call and time to call. Indicate Region Time (Mountain, East Time etc)

ii) Include a subject line with a brief reason for the call request (mandatory) the requestor must provide the subject line showing why they want the call.

iii) Add also some details description why they want the call (mandatory)

d) All chat transcripts should be saved in SQL Server 2008 R2 tables using store procedures.

e) Also request for phone calls could be logged in the database also using store procedures

This solution could be written as ASP.NET solution using C#, and call to database should be made with store procedures. it can be integrated to 360Kmall by our programmers with possible help of the developer if needed. Anyone bidding for this project have to implemented live chat program before and ready to demo it. Anyone with this experience will easily win the project.

Skills required:

.NET, SQL, C# Programming