What Purpose "digital line detect" is used

Hello, I have noticed that whenever I keep my computer idle with signed on, after some time it gives me a message to sign in:
"Digital Line Detected (PBX) Please verify that your phone linf from your computer is directly connected to a standard analog modum or fax line"

My phone is connected to a HP FAX on one side and splitter and DSL Filter are connected to a modem also with a wireless router on the other side. I dont know if this the right kind of set up for a phone fax. So can anyone tell me how to remove this sign in message reminder which is not of any use I suppose. Thank you

What is Digital Line Detect?
Dlg.exe is included into BVRP Phone Tools software suite which provides fax, phone book, e-mail and other sevices. Digital Line Detect is usually pre-installed by Dell and other computer vendors. It runs itself at Windows startup, resides in system memory and detects when you plug or unplug digital telephone line. It also shows the status of connection graphically. It is also known to be included into Connexant V.92 and Broadcom modem drivers.

Is Dlg.exe process malicious or not?
Some time ago Dlg.exe publisher produced spyware and that is why Digital Line Detect is sometimes treated as spyware. However, now it is not spyware anymore. You should definitely delete it if you have some old version of Dlg.exe on your PC. You can decide whether delete it or not if you have newer version. Please note that even newer versions of Dlg.exe process can cause problems, system instability, memory and performance loss. We classify Digital Line Detect as Non-Malicious Problemware.

How to fix Digital Line Detect software problem manually? For advanced users only

To completely solve "Digital Line Detect Dlg.exe" problem you should:

1) Turn off Dlg.exe autostart option in all related programs (modem drivers or BVRP Phone Tools software suite)

2) Kill Dlg.exe process

3) Use Msconfig.exe utility to permanently remove Dgl.exe from startup list.

4) (Optional) Locate and delete Dlg.exe file

This is long but effective way of dlg.exe removal.

Source: securitystronghold.com

Digital Line Detect (DLG.exe) is not a necessary Windows process. It's made by the same company (BVRP) responsible for known spyware applications. In this case, the Digital Line Detect process is part of the Phone Tools Software Suite - offering emailing, faxing, and phone book utilities. If you don't recognize this you're probably not using it - and it's safe to say you can remove it via Add/ Remove Programs without running into problems. In fact, it's probably not a bad idea, especially if the program has access to the Internet.

Could you please tell us more about your scenario? Do you have some sort of PBX software installed? Do you only see this dialog when using application sharing from SharedView?

Got it sorted, deleted the program Digital Line Detect from the add/remove programs. Factory installed software.