Serial Communication
<p>I have a Program that uses serial port communication to talk to some hardware. No problem.
Then I added two GSM Modens to the picture. In VB I opened the COM port to the modem with one protocol (8 data, none, 1) and when the communication between modems was open and running I closed the port and reopened it with a new protocol (7 data, even parity, 2 stop) to my hardware. The hardware is standardized to this speed several years ago so I can not change this and most modems do not support 7, e , 2 protocol. </p>

<p>I want to expand the support of modems and many of them break contact when the port is closed. I'm not using hardware handshaking.</p>

<p><strong><em>So here is my question.</em></strong>
How can I best change between protocols with out closing the serial port?</p>

<ul>
<li>Does anybody have another idea how this can be done without changing any hardware settings? </li>
<li>Make a virtual serial port? (how?) </li>
<li>Ideas?</li>
</ul>
