The SIP/VOIP dialer similar to a predictive dialer should make a high number of test calls from a list of numbers, connects and hangs up.
It could be a simple solution like an Excel with an [login to view URL] will be with a 'PRESET CALLER ID".
Features:
Supports calling lists (csv or similar)
Multi SIP accounts
Multi lines per SIP account.
Should show progress/report of calls.
Should work on Windows 7
Questions can be answered in PMB.
I have been working on SIP / VOIP projects for last 10 years. Have good and mature understanding of SIP state machines, call flows / possible misbehavior of peers.