Manage COM ports

Avg Bid (USD)
Project Budget (USD)
$30 - $100

Project Description:
I'm planning software as follows:
-The first part of the software is a VoIP phone.
-The second part of the software are a Dialup phone. (Call with Dialup Voice Modem.)

I want send VoIP Telephone Outgoing Sound to Dialup phone Incoming (Voice Modem)
I want send Voice Modem Outgoing to VoIP Telephone Incoming.

So I think it is necessary:
1 - Find VoIP and Voice Modem port that it uses to send and receive voice.
2 - Setting and changing the ports

The program is designed to Delphi language. (Ability to compile in Delphi 7)
The program is delivered with full source code.

NOTE: I designed the VoIP Telephony and VoiceModem Telephony .
I want only the source code of Changing ports.

Skills required:
Delphi, Windows Desktop
Additional Files: Incomming.png Outgoing.png
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