This application acts as an SIP UAC (SIP User Agent Client) and can send two types of SIP messages (OPTIONS or REGISTER messages) periodically to other SIP UAs to test the remote SIP UAs at the application layer. It measures the round trip time and when that time exceeds a certain predefined threshold for a certain number of times in a row it sends an Alert email. The application keeps monitoring the UAs at the specified interval but no more alerts are sent while it remains in the same state. Once the SIP UA starts responding again then a new Reset email is sent. At the same time it shows the measured latency of each endpoint on a chart.
Microsoft .NET 4 Client Profile