Unless you have one of those special "call waiting" modems, I do not think you can accomplish what you want. However, an easy way that I use keep call waiting from disconnecting me during fax and/or DUN'ing, is to configure the Dialing Properties to disable call waiting with the proper prefix code, e.g. most places it is *70. My system knows when it I am using a fax program and/or DUN and adds the *70 prefix and disables call waiting. On voice programs, it does not dial the prefix and therefor allows call waiting to be enabled. May your holidays be joy-filled, fun and abundant, Daniel Wysocki Twin*.*Star Computers 770-498-2582/800-816-0663 [log in to unmask] ---------- From: [log in to unmask][SMTP:[log in to unmask]] Sent: Sunday, December 26, 1999 10:04 AM To: [log in to unmask] Subject: Modem commands I need to know what modem commands to add to my modem string so that my modem will not be disconnected by call waiting. I need the command that will a llow the modem to be interrupted but still wait for 20 or 30 seconds before it disconnects. I believe I saw something like this a few months back. TIA Gary South PCBUILD mailing list is brought to you by: The NOSPIN Group http://nospin.com - http://nospin.org PCBUILD maintains hundreds of useful files for download visit our download web page at: http://nospin.com/pc/files.html