What is COM Port Control (RFC 2217)?
Please refer to the Tactical Software Technical Note COM Port Control.
- Can I make VPN connections using a modem on a modem server?
Yes, with two exceptions: If you are using a Citrix server, the operating system prevents the use of more than one such connection. If you have used a VPN to reach the network containing the modem server, you can not make another VPN connection (e.g., PPP or dial-up networking connection) us ...
- Does using a redirector and a device server affect the timing of data transmission?
The network communications between a redirector and a device server naturally adds a small time delay compared to using a locally attached modem or serial port. Very few applications are sensitive to this change in latency, Class 1 fax applications being the main example. For this reason, Tactic ...
- How can Terminal Services/Citrix users access a modem/serial server that requires authentication (username and password)?
Tactical's redirectors (specifically, DialOut/EZ and Serial/IP) offer four methods for providing credentials for authentication. However, only the Use Credentails Below method can be considered for Terminal Services / Citrix configurations. A username and password can be configured in the redi ...
- How do I make pcAnywhere work correctly with the DialOut/EZ redirector?
Our software requires that pcAnywhere be version 8.02 or greater. Make sure the "Assert DCD/DSR After COM Port Open" box is checked under Application Compatibility if your modem server does not support the COM Port Control Protocol. If you are only seeing issues with pcAnywhere, then you'll need ...
- I'm faxing through your software and see garbage characters, lines of the fax disappearing or being corrupted, missing pages or additional pages. Is there a way to prevent this?
First ensure that you are sending a Class 2 or 2.0 fax. Class 1 faxes are too time sensitive to be successfully redirected. Incorrect flow control settings is a common cause for faxing glitches. Typically the problem is that modem server is set to Software (Xon/Xoff) flow control and the mode ...
- When I use a VPN to connect to a network, can I use the DialOut/EZ Redirector for access to a modem server and make a PPP/Dial Up Networking call?
Although modem servers can be used over a VPN for nearly all applications, this specific configuration does not work due to an inevitable conflict in handling of the IP routing table: The redirector needs to be able to connect continuously to the modem server. PPP/DUN connections disrupt th ...
- When using Dial-Up Networking, why does my PC lose access to parts of my local area network?
Dial-Up Networking causes a new “default route” to be added to the routing table once a successful session is initiated. If the local LAN contains multiple subnets, and the PC gains access to those subnets using a default route in the routing table, the new default route added by Di ...
- When using the DialOut/EZ redirector, is there a way to hear the modem sounds during the negotiation of the connection?
It is not possible for the DialOut/EZ redirector to emit the sounds that the modems are making during the handshake at the beginning of a call. A modem is able to emit modem sounds itself, but there is no mechanism that can relay the sound up to higher-level hardware. So, when a modem is used b ...
