Dialer/Modem issue

I have just had a dialer developed for my custom requirements. the developer seems to have a great job, though I am still testing. I will be using this dialer with calling cards etc. At the moment I have to hang up and dial the whole calling card sequence again which is a time consuming practice. Some cards allow "##" to be dialed at the end of a call, instead of hanging up to make a follow on call. My developer has advised that dailing using a modem does not allow for additional numbers/character to be dialed once the call has been connected. Whilst I am prepared to accept this at face value, if a way could be found to allow for this, it would save approx of the users working time. As such im seeking a second opinion for good commercial measure. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Win 2000 and XP, 2003