HHD Software, Ltd.
It allows you to create virtual serial ports and emulate their behavior.
Emulate one or more couples of RS-232 ports connected via null-modem cable.
Virtual Modem PRO fully emulates standard hardware modems. It creates software virtual IP-modems and....
Tactical Software, LLC
It allows you to use modem servers and share modem pools.
Allows you to work with any serial devices connected to remote computers.
Virtual serial ports look and work exactly as real hardware serial ports.
T.38 Fax/Voice/SIP/H.323/ISDN modem. Operates with standard fax soft.
TekSIP is a SIP Registrar and SIP Proxy for Windows.
Robust SIP ActiveX Phone is a powerful and robust SIP ActiveX phone client.
E-Soft Billing (Pvt.) Ltd.
SIP Mobile Dialer is designed for small and mid size VoIP/SIP providers.
Router Port Forwarding is a port forwarding and port triggering tool for router.
Modem Booster is a program that may improve your modem connection speed.
Modem Status indicator (Win95/Win98/NT4/Win2k):blinking modem lights on Your Windows screen! For use....
Advanced Modem Data Logger - an efficient tool for your modem data logging needs.
Gradient Technologies, LLC
eCall PSAP and 3GPP Inband Modem Server MSD/FDS (Transmitted from the IVS modem).