SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Strategies & Market Trends : Anthony @ Equity Investigations, Dear Anthony,

 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: CatLady who wrote (8548)2/3/1999 2:40:00 AM
From: TheLineMan  Read Replies (2) of 122087
 
I read the rest:
This device will consist of an LED and modem capable of FSK (I'm not sure what standard of FSK these specs call for, (I guess it's V.22 most payphones use that for providing info back to the "home switch- PSTN").
They also have an alternative to detecting the "stuttertone" (see below).

It get worse look at this disclaimer (a no-go in my opinion):

"One is the cost of upgrading the switch to provide CLASS MWI signaling. Another limitation is the difficulty to distribute the CLASS MWI signal throughout the entire network. For subscriber areas which are distant from the CO, a form of signal repeater, or subscriber loop carrier (SLC), is often included in the network. In order to pass the CLASS MWI signal, these SLCs also need to be upgraded at a cost. A third limitation is the delayed MWI signal transmission when the phone is off-hook. If an attempt to transmit the CLASS MWI signal to the subscriber's VMWI is delayed because the
subscriber's phone is in use, then the switch does not attempt to re-send the CLASS MWI signal again for a significant time, from two to four hours. The advantage of timely CLASS MWI is lost."
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext