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From: v056pxb4@ubvmsa.cc.buffalo.edu (John P Weiksnar)
Newsgroups: comp.sys.laptops
Subject: >>> I just RETURNED my Damark 2400 Modem
Keywords: Damark modem lemon
Message-ID: <67266@eerie.acsu.Buffalo.EDU>
Date: 24 Mar 91 08:18:56 GMT
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	Before you order your Damark 2400 line-powered modem for
	$75.99, READ THIS:

	The made-in-Singapore TT ComCall modem is, as advertised,
	great for laptops--it's tiny, and light, and "minimal."

	HOWEVER, after using it online for only 5 MINUTES, a call
	waiting call intruded  (In haste, I neglected to disable
	call waiting for that call). The modem STOPPED WORKING
	THEREAFTER.

	Specifically, every attempt to "ATDT" resulted in the
	ominous NO DIALTONE message. All my cables were sound, and
	nothing else had changed since the original call I placed.

	The tiny, Xeroxed instructions (originally done on a
	Mac, from what I can gather!) did show all commands
	for setting/verifying registers in the non-volatile RAM.
	In that regard, the modem isn't all bad--it even has room
	for 2 or 3 preset configurations on power-up, and
	3 telephone number memories. Inside the modem is an
	astonishing amount of SM technology--and even a hidden
	LED which lights when it's online.

	BTW: I know for a fact that the modem was indeed grabbing
	the phone line to dial out after call waiting killed it: there's
	an "Line in Use" light on another phone on the same 
	extension. Also, shorting-out the RJ-11 fingers (to
	force a "hard reset," in case one of the caps was powering
	it after the mishap) was also ineffective in getting it
	to acknowledge the dialtone. I had even reset the registers
	to "FACTORY" preset conditions.

	So WATCH OUT if you have call waiting!!

	---------------------------------------
	John P. Weiksnar  v056pxb4@ubvmsa.cc.buffalo.edu